diff --git a/src/main/kotlin/net/thauvin/erik/mobibot/FeedReader.kt b/src/main/kotlin/net/thauvin/erik/mobibot/FeedReader.kt
index 16c8e6b..739f45a 100644
--- a/src/main/kotlin/net/thauvin/erik/mobibot/FeedReader.kt
+++ b/src/main/kotlin/net/thauvin/erik/mobibot/FeedReader.kt
@@ -34,6 +34,7 @@ package net.thauvin.erik.mobibot
 import com.rometools.rome.io.FeedException
 import com.rometools.rome.io.SyndFeedInput
 import com.rometools.rome.io.XmlReader
+import net.thauvin.erik.mobibot.Utils.cyan
 import net.thauvin.erik.mobibot.Utils.green
 import net.thauvin.erik.mobibot.Utils.helpFormat
 import net.thauvin.erik.mobibot.Utils.sendMessage
@@ -83,7 +84,7 @@ class FeedReader(private val url: String, val event: GenericMessageEvent) : Runn
                 } else {
                     items.take(maxItems).forEach {
                         messages.add(NoticeMessage(it.title))
-                        messages.add(NoticeMessage(helpFormat(green(it.link), false)))
+                        messages.add(NoticeMessage(helpFormat(it.link.cyan(), false)))
                     }
                 }
             }
diff --git a/src/main/kotlin/net/thauvin/erik/mobibot/Utils.kt b/src/main/kotlin/net/thauvin/erik/mobibot/Utils.kt
index 6f75788..0d220c8 100644
--- a/src/main/kotlin/net/thauvin/erik/mobibot/Utils.kt
+++ b/src/main/kotlin/net/thauvin/erik/mobibot/Utils.kt
@@ -75,19 +75,19 @@ object Utils {
      * Makes the given int bold.
      */
     @JvmStatic
-    fun bold(i: Int): String = bold(i.toString())
+    fun Int.bold(): String = this.toString().bold()
 
     /**
      * Makes the given long bold.
      */
     @JvmStatic
-    fun bold(i: Long): String = bold(i.toString())
+    fun Long.bold(): String = this.toString().bold()
 
     /**
      * Makes the given string bold.
      */
     @JvmStatic
-    fun bold(s: String?): String = colorize(s, Colors.BOLD)
+    fun String?.bold(): String = this.colorize(Colors.BOLD)
 
     /**
      * Returns the [PircBotX] instance.
@@ -122,15 +122,15 @@ object Utils {
      * Colorize a string.
      */
     @JvmStatic
-    fun colorize(s: String?, color: String): String {
-        return if (s.isNullOrEmpty()) {
+    fun String?.colorize(color: String): String {
+        return if (this.isNullOrEmpty()) {
             ""
         } else if (color == DEFAULT_COLOR) {
-            s
+            this
         } else if (Colors.BOLD == color || Colors.REVERSE == color) {
-            color + s + color
+            color + this + color
         } else {
-            color + s + Colors.NORMAL
+            color + this + Colors.NORMAL
         }
     }
 
@@ -138,7 +138,7 @@ object Utils {
      * Makes the given string cyan.
      */
     @JvmStatic
-    fun cyan(s: String?): String = colorize(s, Colors.CYAN)
+    fun String?.cyan(): String = this.colorize(Colors.CYAN)
 
     /**
      * URL encodes the given string.
@@ -158,7 +158,7 @@ object Utils {
      * Makes the given string green.
      */
     @JvmStatic
-    fun green(s: String?): String = colorize(s, Colors.DARK_GREEN)
+    fun String?.green(): String = this.colorize(Colors.DARK_GREEN)
 
     /**
      * Returns a formatted help string.
@@ -166,7 +166,7 @@ object Utils {
     @JvmStatic
     @JvmOverloads
     fun helpFormat(help: String, isBold: Boolean = true, isIndent: Boolean = true): String {
-        val s = if (isBold) bold(help) else help
+        val s = if (isBold) help.bold() else help
         return if (isIndent) s.prependIndent() else s
     }
 
@@ -200,7 +200,7 @@ object Utils {
      * Makes the given string red.
      */
     @JvmStatic
-    fun red(s: String?): String = colorize(s, Colors.RED)
+    fun String?.red(): String = this.colorize(Colors.RED)
 
     /**
      * Replaces all occurrences of Strings within another String.
@@ -220,7 +220,7 @@ object Utils {
      * Makes the given string reverse color.
      */
     @JvmStatic
-    fun reverseColor(s: String?): String = colorize(s, Colors.REVERSE)
+    fun String?.reverseColor(): String = this.colorize(Colors.REVERSE)
 
     /**
      * Send a formatted commands/modules, etc. list.
@@ -252,11 +252,11 @@ object Utils {
     @JvmStatic
     fun GenericMessageEvent.sendMessage(channel: String, message: Message) {
         if (message.isNotice) {
-            bot().sendIRC().notice(user.nick, colorize(message.msg, message.color))
+            bot().sendIRC().notice(user.nick, message.msg.colorize(message.color))
         } else if (message.isPrivate || this is PrivateMessageEvent || channel.isBlank()) {
-            respondPrivateMessage(colorize(message.msg, message.color))
+            respondPrivateMessage(message.msg.colorize(message.color))
         } else {
-            bot().sendIRC().message(channel, colorize(message.msg, message.color))
+            bot().sendIRC().message(channel, message.msg.colorize(message.color))
         }
     }
 
diff --git a/src/main/kotlin/net/thauvin/erik/mobibot/commands/Ignore.kt b/src/main/kotlin/net/thauvin/erik/mobibot/commands/Ignore.kt
index d1e38ce..2dc04ca 100644
--- a/src/main/kotlin/net/thauvin/erik/mobibot/commands/Ignore.kt
+++ b/src/main/kotlin/net/thauvin/erik/mobibot/commands/Ignore.kt
@@ -134,7 +134,7 @@ class Ignore : AbstractCommand() {
             event.sendMessage("The following nicks are ignored:")
             event.sendList(ignored.sorted(), 8, isIndent = true)
         } else {
-            event.sendMessage("No one is currently ${bold("ignored")}.")
+            event.sendMessage("No one is currently ${"ignored".bold()}.")
         }
     }
 
diff --git a/src/main/kotlin/net/thauvin/erik/mobibot/commands/Info.kt b/src/main/kotlin/net/thauvin/erik/mobibot/commands/Info.kt
index a383756..8e54bf0 100644
--- a/src/main/kotlin/net/thauvin/erik/mobibot/commands/Info.kt
+++ b/src/main/kotlin/net/thauvin/erik/mobibot/commands/Info.kt
@@ -33,6 +33,7 @@ package net.thauvin.erik.mobibot.commands
 
 import net.thauvin.erik.mobibot.ReleaseInfo
 import net.thauvin.erik.mobibot.Utils.capitalise
+import net.thauvin.erik.mobibot.Utils.cyan
 import net.thauvin.erik.mobibot.Utils.green
 import net.thauvin.erik.mobibot.Utils.helpFormat
 import net.thauvin.erik.mobibot.Utils.isChannelOp
@@ -46,8 +47,8 @@ import java.lang.management.ManagementFactory
 
 class Info(private val tell: Tell) : AbstractCommand() {
     private val allVersions = listOf(
-        "${ReleaseInfo.PROJECT.capitalise()} ${ReleaseInfo.VERSION} (${green(ReleaseInfo.WEBSITE)})",
-        "Written by ${ReleaseInfo.AUTHOR} (${green(ReleaseInfo.AUTHOR_URL)})"
+        "${ReleaseInfo.PROJECT.capitalise()} ${ReleaseInfo.VERSION} (${ReleaseInfo.WEBSITE.cyan()})",
+        "Written by ${ReleaseInfo.AUTHOR} (${ReleaseInfo.AUTHOR_URL.green()})"
     )
     override val name = "info"
     override val help = listOf("To view information about the bot:", helpFormat("%c $name"))
diff --git a/src/main/kotlin/net/thauvin/erik/mobibot/commands/links/Comment.kt b/src/main/kotlin/net/thauvin/erik/mobibot/commands/links/Comment.kt
index 61143fb..02f0a3c 100644
--- a/src/main/kotlin/net/thauvin/erik/mobibot/commands/links/Comment.kt
+++ b/src/main/kotlin/net/thauvin/erik/mobibot/commands/links/Comment.kt
@@ -47,7 +47,7 @@ class Comment : AbstractCommand() {
     override val help = listOf(
         "To add a comment:",
         helpFormat("${Constants.LINK_CMD}1:This is a comment"),
-        "I will reply with a label, for example: ${bold(Constants.LINK_CMD)}1.1",
+        "I will reply with a label, for example: ${Constants.LINK_CMD.bold()}1.1",
         "To edit a comment, use its label: ",
         helpFormat("${Constants.LINK_CMD}1.1:This is an edited comment"),
         "To delete a comment, use its label and a minus sign: ",
diff --git a/src/main/kotlin/net/thauvin/erik/mobibot/commands/links/LinksMgr.kt b/src/main/kotlin/net/thauvin/erik/mobibot/commands/links/LinksMgr.kt
index 7bd95b8..74be69f 100644
--- a/src/main/kotlin/net/thauvin/erik/mobibot/commands/links/LinksMgr.kt
+++ b/src/main/kotlin/net/thauvin/erik/mobibot/commands/links/LinksMgr.kt
@@ -167,7 +167,7 @@ class LinksMgr : AbstractCommand() {
             for (i in entries.links.indices) {
                 if (link == entries.links[i].link) {
                     val entry: EntryLink = entries.links[i]
-                    event.sendMessage(bold("Duplicate") + " >> " + EntriesUtils.buildLink(i, entry))
+                    event.sendMessage("Duplicate".bold() + " >> " + EntriesUtils.buildLink(i, entry))
                     return true
                 }
             }
diff --git a/src/main/kotlin/net/thauvin/erik/mobibot/commands/links/Posting.kt b/src/main/kotlin/net/thauvin/erik/mobibot/commands/links/Posting.kt
index 2e7d9ec..1a43c03 100644
--- a/src/main/kotlin/net/thauvin/erik/mobibot/commands/links/Posting.kt
+++ b/src/main/kotlin/net/thauvin/erik/mobibot/commands/links/Posting.kt
@@ -49,12 +49,12 @@ class Posting : AbstractCommand() {
     override val help = listOf(
         "Post a URL, by saying it on a line on its own:",
         helpFormat("<url> [<title>] ${Tags.COMMAND}: <+tag> [...]]"),
-        "I will reply with a label, for example: ${bold(Constants.LINK_CMD)}1",
+        "I will reply with a label, for example: ${Constants.LINK_CMD.bold()}1",
         "To add a title, use its label and a pipe:",
         helpFormat("${Constants.LINK_CMD}1:|This is the title"),
         "To add a comment:",
         helpFormat("${Constants.LINK_CMD}1:This is a comment"),
-        "I will reply with a label, for example: ${bold(Constants.LINK_CMD)}1.1",
+        "I will reply with a label, for example: ${Constants.LINK_CMD.bold()}1.1",
         "To edit a comment, see: ",
         helpFormat("%c ${Constants.HELP_CMD} ${Comment.COMMAND}")
     )
diff --git a/src/main/kotlin/net/thauvin/erik/mobibot/entries/EntriesUtils.kt b/src/main/kotlin/net/thauvin/erik/mobibot/entries/EntriesUtils.kt
index b577895..4c4c29c 100644
--- a/src/main/kotlin/net/thauvin/erik/mobibot/entries/EntriesUtils.kt
+++ b/src/main/kotlin/net/thauvin/erik/mobibot/entries/EntriesUtils.kt
@@ -65,9 +65,9 @@ object EntriesUtils {
             if (Constants.NO_TITLE == title) {
                 buff.append(title)
             } else {
-                buff.append(bold(title))
+                buff.append(title.bold())
             }
-            buff.append(" ( ").append(green(link)).append(" )")
+            buff.append(" ( ").append(link.green()).append(" )")
         }
         return buff.toString()
     }
diff --git a/src/main/kotlin/net/thauvin/erik/mobibot/modules/Calc.kt b/src/main/kotlin/net/thauvin/erik/mobibot/modules/Calc.kt
index efe87e5..25ae072 100644
--- a/src/main/kotlin/net/thauvin/erik/mobibot/modules/Calc.kt
+++ b/src/main/kotlin/net/thauvin/erik/mobibot/modules/Calc.kt
@@ -74,7 +74,7 @@ class Calc : AbstractModule() {
         fun calculate(query: String): String {
             val decimalFormat = DecimalFormat("#.##")
             val calc = ExpressionBuilder(query).build()
-            return query.replace(" ", "") + " = " + bold(decimalFormat.format(calc.evaluate()))
+            return query.replace(" ", "") + " = " + decimalFormat.format(calc.evaluate()).bold()
         }
     }
 
diff --git a/src/main/kotlin/net/thauvin/erik/mobibot/modules/CurrencyConverter.kt b/src/main/kotlin/net/thauvin/erik/mobibot/modules/CurrencyConverter.kt
index ebaadb8..915aa49 100644
--- a/src/main/kotlin/net/thauvin/erik/mobibot/modules/CurrencyConverter.kt
+++ b/src/main/kotlin/net/thauvin/erik/mobibot/modules/CurrencyConverter.kt
@@ -89,7 +89,7 @@ class CurrencyConverter : ThreadedModule() {
                 helpResponse(event)
             }
         } else if (args.contains(CURRENCY_RATES_KEYWORD)) {
-            event.sendMessage("The reference rates for ${bold(pubDate)} are:")
+            event.sendMessage("The reference rates for ${pubDate.bold()} are:")
             event.sendList(currencyRates(), 3, "   ", isIndent = true)
         } else {
             helpResponse(event)
diff --git a/src/main/kotlin/net/thauvin/erik/mobibot/modules/Dice.kt b/src/main/kotlin/net/thauvin/erik/mobibot/modules/Dice.kt
index 977a5b6..4dced28 100644
--- a/src/main/kotlin/net/thauvin/erik/mobibot/modules/Dice.kt
+++ b/src/main/kotlin/net/thauvin/erik/mobibot/modules/Dice.kt
@@ -47,11 +47,11 @@ class Dice : AbstractModule() {
         val total = roll.first + roll.second
         with(event.bot()) {
             event.respond(
-                "you rolled ${DICE_FACES[roll.first]}  ${DICE_FACES[roll.second]}  for a total of ${bold(total)}"
+                "you rolled ${DICE_FACES[roll.first]}  ${DICE_FACES[roll.second]}  for a total of ${total.bold()}"
             )
             sendIRC().action(
                 channel,
-                "rolled ${DICE_FACES[botRoll.first]}  ${DICE_FACES[botRoll.second]}  for a total of ${bold(botTotal)}"
+                "rolled ${DICE_FACES[botRoll.first]}  ${DICE_FACES[botRoll.second]}  for a total of ${botTotal.bold()}"
             )
             when (winLoseOrTie(botTotal, total)) {
                 Result.WIN -> sendIRC().action(channel, "wins.")
diff --git a/src/main/kotlin/net/thauvin/erik/mobibot/modules/Joke.kt b/src/main/kotlin/net/thauvin/erik/mobibot/modules/Joke.kt
index 3ba5f00..26d7af3 100644
--- a/src/main/kotlin/net/thauvin/erik/mobibot/modules/Joke.kt
+++ b/src/main/kotlin/net/thauvin/erik/mobibot/modules/Joke.kt
@@ -66,7 +66,7 @@ class Joke : ThreadedModule() {
     override fun run(channel: String, cmd: String, args: String, event: GenericMessageEvent) {
         with(event.bot()) {
             try {
-                sendIRC().notice(channel, cyan(randomJoke().msg))
+                sendIRC().notice(channel, randomJoke().msg.cyan())
             } catch (e: ModuleException) {
                 if (logger.isWarnEnabled) logger.warn(e.debugMessage, e)
                 e.message?.let {
diff --git a/src/main/kotlin/net/thauvin/erik/mobibot/modules/Weather2.kt b/src/main/kotlin/net/thauvin/erik/mobibot/modules/Weather2.kt
index 273c374..f5f1e16 100644
--- a/src/main/kotlin/net/thauvin/erik/mobibot/modules/Weather2.kt
+++ b/src/main/kotlin/net/thauvin/erik/mobibot/modules/Weather2.kt
@@ -240,7 +240,7 @@ class Weather2 : ThreadedModule() {
             add(helpFormat("%c $WEATHER_CMD <city> [, <country code>]"))
             add("For example:")
             add(helpFormat("%c $WEATHER_CMD paris, fr"))
-            add("The default ISO 3166 country code is ${bold("US")}. Zip codes supported in most countries.")
+            add("The default ISO 3166 country code is ${"US".bold()}. Zip codes supported in most countries.")
         }
         initProperties(OWM_API_KEY_PROP)
     }
diff --git a/src/main/kotlin/net/thauvin/erik/mobibot/modules/WorldTime.kt b/src/main/kotlin/net/thauvin/erik/mobibot/modules/WorldTime.kt
index 3105d97..5d9fcde 100644
--- a/src/main/kotlin/net/thauvin/erik/mobibot/modules/WorldTime.kt
+++ b/src/main/kotlin/net/thauvin/erik/mobibot/modules/WorldTime.kt
@@ -64,7 +64,7 @@ class WorldTime : AbstractModule() {
 
         // Date/Time Format
         private var dtf =
-            DateTimeFormatter.ofPattern("'The time is ${bold("'HH:mm'")} on ${bold("'EEEE, d MMMM yyyy'")} in '")
+            DateTimeFormatter.ofPattern("'The time is ${"'HH:mm'".bold()} on ${"'EEEE, d MMMM yyyy'".bold()} in '")
 
         /**
          * Returns the current Internet (beat) Time.
@@ -84,10 +84,10 @@ class WorldTime : AbstractModule() {
             val tz = COUNTRIES_MAP[(if (query.isNotBlank()) query.trim().uppercase() else DEFAULT_ZONE)]
             return if (tz != null) {
                 if (BEATS_KEYWORD == tz) {
-                    "The current Internet Time is ${bold(internetTime())} $BEATS_KEYWORD"
+                    "The current Internet Time is ${internetTime().bold()} $BEATS_KEYWORD"
                 } else {
                     (ZonedDateTime.now().withZoneSameInstant(ZoneId.of(tz)).format(dtf)
-                            + bold(tz.substring(tz.lastIndexOf('/') + 1).replace('_', ' ')))
+                            + tz.substring(tz.lastIndexOf('/') + 1).replace('_', ' ').bold())
                 }
             } else {
                 "Unsupported country/zone. Please try again."
@@ -362,13 +362,8 @@ class WorldTime : AbstractModule() {
             zones["ZM"] = "Africa/Lusaka"
             zones["ZULU"] = "Zulu"
             zones["ZW"] = "Africa/Harare"
-            ZoneId.getAvailableZoneIds().stream()
-                .filter { tz: String ->
-                    tz.length <= 3 && !zones.containsKey(tz)
-                }
-                .forEach { tz: String ->
-                    zones[tz] = tz
-                }
+            ZoneId.getAvailableZoneIds().filter { it.length <= 3 && !zones.containsKey(it) }
+                .forEach { tz -> zones[tz] = tz }
             COUNTRIES_MAP = Collections.unmodifiableMap(zones)
         }
     }
diff --git a/src/test/kotlin/net/thauvin/erik/mobibot/UtilsTest.kt b/src/test/kotlin/net/thauvin/erik/mobibot/UtilsTest.kt
index 876bea0..92ac36f 100644
--- a/src/test/kotlin/net/thauvin/erik/mobibot/UtilsTest.kt
+++ b/src/test/kotlin/net/thauvin/erik/mobibot/UtilsTest.kt
@@ -97,10 +97,10 @@ class UtilsTest {
 
     @Test
     fun testBold() {
-        assertThat(bold(1), "bold(1)").isEqualTo(Colors.BOLD + "1" + Colors.BOLD)
-        assertThat(bold(2L), "bold(1)").isEqualTo(Colors.BOLD + "2" + Colors.BOLD)
-        assertThat(bold(ascii), "bold(ascii)").isEqualTo(Colors.BOLD + ascii + Colors.BOLD)
-        assertThat(bold("test"), "bold(test)").isEqualTo(Colors.BOLD + "test" + Colors.BOLD)
+        assertThat(1.bold(), "1.bold()").isEqualTo(Colors.BOLD + "1" + Colors.BOLD)
+        assertThat(2L.bold(), "1.bold()").isEqualTo(Colors.BOLD + "2" + Colors.BOLD)
+        assertThat(ascii.bold(), "ascii.bold()").isEqualTo(Colors.BOLD + ascii + Colors.BOLD)
+        assertThat("test".bold(), "test.bold()").isEqualTo(Colors.BOLD + "test" + Colors.BOLD)
     }
 
     @Test
@@ -131,23 +131,23 @@ class UtilsTest {
 
     @Test
     fun testColorize() {
-        assertThat(colorize(ascii, Colors.REVERSE), "colorize(reverse)").isEqualTo(
+        assertThat(ascii.colorize(Colors.REVERSE), "reverse.colorize()").isEqualTo(
             Colors.REVERSE + ascii + Colors.REVERSE
         )
-        assertThat(colorize(ascii, Colors.RED), "colorize(red)")
+        assertThat(ascii.colorize(Colors.RED), "red.colorize()")
             .isEqualTo(Colors.RED + ascii + Colors.NORMAL)
-        assertThat(colorize(ascii, Colors.BOLD), "colorized(bold)")
+        assertThat(ascii.colorize(Colors.BOLD), "colorized(bold)")
             .isEqualTo(Colors.BOLD + ascii + Colors.BOLD)
-        assertThat(colorize(null, Colors.RED), "colorize(null)").isEqualTo("")
-        assertThat(colorize("", Colors.RED), "colorize()").isEqualTo("")
-        assertThat(colorize(ascii, DEFAULT_COLOR), "colorize(none)").isEqualTo(ascii)
-        assertThat(colorize("   ", Colors.NORMAL), "colorize(blank)")
+        assertThat(null.colorize(Colors.RED), "null.colorize()").isEqualTo("")
+        assertThat("".colorize(Colors.RED), "colorize()").isEqualTo("")
+        assertThat(ascii.colorize(DEFAULT_COLOR), "none.colorize()").isEqualTo(ascii)
+        assertThat("   ".colorize(Colors.NORMAL), "blank.colorize()")
             .isEqualTo(Colors.NORMAL + "   " + Colors.NORMAL)
     }
 
     @Test
     fun testCyan() {
-        assertThat(cyan(ascii)).isEqualTo(Colors.CYAN + ascii + Colors.NORMAL)
+        assertThat(ascii.cyan()).isEqualTo(Colors.CYAN + ascii + Colors.NORMAL)
     }
 
     @Test
@@ -167,7 +167,7 @@ class UtilsTest {
 
     @Test
     fun testGreen() {
-        assertThat(green(ascii)).isEqualTo(Colors.DARK_GREEN + ascii + Colors.NORMAL)
+        assertThat(ascii.green()).isEqualTo(Colors.DARK_GREEN + ascii + Colors.NORMAL)
     }
 
     @Test
@@ -177,7 +177,7 @@ class UtilsTest {
         assertThat(helpFormat(test, isBold = false, isIndent = true), "indent")
             .isEqualTo(test.prependIndent())
         assertThat(helpFormat(test, isBold = true, isIndent = true), "bold-indent")
-            .isEqualTo(colorize(test, Colors.BOLD).prependIndent())
+            .isEqualTo(test.colorize(Colors.BOLD).prependIndent())
 
     }
 
@@ -224,12 +224,12 @@ class UtilsTest {
 
     @Test
     fun testRed() {
-        assertThat(red(ascii)).isEqualTo(colorize(ascii, Colors.RED))
+        assertThat(ascii.red()).isEqualTo(ascii.colorize(Colors.RED))
     }
 
     @Test
     fun testReverseColor() {
-        assertThat(reverseColor(ascii)).isEqualTo(Colors.REVERSE + ascii + Colors.REVERSE)
+        assertThat(ascii.reverseColor()).isEqualTo(Colors.REVERSE + ascii + Colors.REVERSE)
     }
 
     @Test
diff --git a/src/test/kotlin/net/thauvin/erik/mobibot/modules/CalcTest.kt b/src/test/kotlin/net/thauvin/erik/mobibot/modules/CalcTest.kt
index 80a49b5..b37a09c 100644
--- a/src/test/kotlin/net/thauvin/erik/mobibot/modules/CalcTest.kt
+++ b/src/test/kotlin/net/thauvin/erik/mobibot/modules/CalcTest.kt
@@ -46,9 +46,9 @@ import org.testng.annotations.Test
 class CalcTest {
     @Test
     fun testCalculate() {
-        assertThat(calculate("1 + 1"), "calculate(1+1)").isEqualTo("1+1 = ${bold(2)}")
-        assertThat(calculate("1 -3"), "calculate(1 -3)").isEqualTo("1-3 = ${bold(-2)}")
-        assertThat(calculate("pi+π+e+φ"), "calculate(pi+π+e+φ)").isEqualTo("pi+π+e+φ = ${bold("10.62")}")
+        assertThat(calculate("1 + 1"), "calculate(1+1)").isEqualTo("1+1 = ${2.bold()}")
+        assertThat(calculate("1 -3"), "calculate(1 -3)").isEqualTo("1-3 = ${(-2).bold()}")
+        assertThat(calculate("pi+π+e+φ"), "calculate(pi+π+e+φ)").isEqualTo("pi+π+e+φ = ${"10.62".bold()}")
         assertThat { calculate("one + one") }.isFailure().isInstanceOf(UnknownFunctionOrVariableException::class.java)
     }
 }
diff --git a/src/test/kotlin/net/thauvin/erik/mobibot/modules/WordTimeTest.kt b/src/test/kotlin/net/thauvin/erik/mobibot/modules/WordTimeTest.kt
index ddc6e8f..abe9416 100644
--- a/src/test/kotlin/net/thauvin/erik/mobibot/modules/WordTimeTest.kt
+++ b/src/test/kotlin/net/thauvin/erik/mobibot/modules/WordTimeTest.kt
@@ -55,10 +55,10 @@ class WordTimeTest {
                     "on ${Colors.BOLD}\\w+, \\d{1,2} \\w+ \\d{4}${Colors.BOLD} " +
                     "in ${Colors.BOLD}Los Angeles${Colors.BOLD}").toRegex()
         )
-        assertThat(time(""), "empty zone").endsWith(bold("Los Angeles"))
-        assertThat(time("PST"), "PST").endsWith(bold("Los Angeles"))
-        assertThat(time("GB"), "GB").endsWith(bold("London"))
-        assertThat(time("FR"), "FR").endsWith(bold("Paris"))
+        assertThat(time(""), "empty zone").endsWith("Los Angeles".bold())
+        assertThat(time("PST"), "PST").endsWith("Los Angeles".bold())
+        assertThat(time("GB"), "GB").endsWith("London".bold())
+        assertThat(time("FR"), "FR").endsWith("Paris".bold())
         assertThat(time("BLAH"), "BLAH").startsWith("Unsupported")
         assertThat(time("BEAT"), BEATS_KEYWORD).matches("[\\w ]+ .?@\\d{3}+.? .beats".toRegex())
     }