diff --git a/src/main/java/net/thauvin/erik/mobibot/modules/CurrencyConverter.java b/src/main/java/net/thauvin/erik/mobibot/modules/CurrencyConverter.java
index bd5664f..73e26ad 100644
--- a/src/main/java/net/thauvin/erik/mobibot/modules/CurrencyConverter.java
+++ b/src/main/java/net/thauvin/erik/mobibot/modules/CurrencyConverter.java
@@ -60,20 +60,14 @@ import java.util.TreeMap;
  * @since 1.0
  */
 public final class CurrencyConverter extends AbstractModule {
-    /**
-     * The rates keyword.
-     */
+    // The rates keyword.
     static final String CURRENCY_RATES_KEYWORD = "rates";
-
     // The currency command.
     private static final String CURRENCY_CMD = "currency";
-
     // The exchange rates.
     private static final Map<String, String> EXCHANGE_RATES = new TreeMap<>();
-
     // The exchange rates table URL.
     private static final String EXCHANGE_TABLE_URL = "https://www.ecb.europa.eu/stats/eurofxref/eurofxref-daily.xml";
-
     // The last exchange rates table publication date.
     private static String pubDate = "";
 
@@ -203,7 +197,7 @@ public final class CurrencyConverter extends AbstractModule {
                 try {
                     final Message msg = convertCurrency(query);
                     if (msg.isError()) {
-                        helpResponse(bot, sender, CURRENCY_CMD + ' ' + query, true);
+                        helpResponse(bot, sender, CURRENCY_CMD + ' ' + query, false);
                     }
                     bot.send(msg.isNotice() ? sender : bot.getChannel(), msg.getMessage());
                 } catch (ModuleException e) {
diff --git a/src/main/java/net/thauvin/erik/mobibot/modules/Joke.java b/src/main/java/net/thauvin/erik/mobibot/modules/Joke.java
index 7157814..074369b 100644
--- a/src/main/java/net/thauvin/erik/mobibot/modules/Joke.java
+++ b/src/main/java/net/thauvin/erik/mobibot/modules/Joke.java
@@ -32,9 +32,9 @@
 package net.thauvin.erik.mobibot.modules;
 
 import net.thauvin.erik.mobibot.Mobibot;
+import net.thauvin.erik.mobibot.Utils;
 import net.thauvin.erik.mobibot.msg.Message;
 import net.thauvin.erik.mobibot.msg.PublicMessage;
-import org.jibble.pircbot.Colors;
 import org.json.JSONObject;
 
 import java.io.BufferedReader;
@@ -51,14 +51,11 @@ import java.nio.charset.StandardCharsets;
  * @since 1.0
  */
 public final class Joke extends AbstractModule {
-    /**
-     * The joke command.
-     */
-    public static final String JOKE_CMD = "joke";
-
     // The ICNDB URL.
     private static final String JOKE_URL =
         "http://api.icndb.com/jokes/random?escape=javascript&exclude=[explicit]&limitTo=[nerdy]";
+    // The joke command.
+    private static final String JOKE_CMD = "joke";
 
     /**
      * Creates a new {@link Joke} instance.
@@ -87,6 +84,7 @@ public final class Joke extends AbstractModule {
 
                 final JSONObject json = new JSONObject(sb.toString());
 
+                //noinspection RegExpRedundantEscape
                 return new PublicMessage(
                     json.getJSONObject("value").get("joke").toString().replaceAll("\\'", "'")
                         .replaceAll("\\\"", "\""));
@@ -118,7 +116,7 @@ public final class Joke extends AbstractModule {
      */
     private void run(final Mobibot bot, final String sender) {
         try {
-            bot.send(bot.getChannel(), Colors.CYAN + randomJoke().getMessage() + Colors.NORMAL);
+            bot.send(bot.getChannel(), Utils.cyan(randomJoke().getMessage()));
         } catch (ModuleException e) {
             bot.getLogger().warn(e.getDebugMessage(), e);
             bot.send(sender, e.getMessage());
diff --git a/src/main/java/net/thauvin/erik/mobibot/modules/Twitter.java b/src/main/java/net/thauvin/erik/mobibot/modules/Twitter.java
index 6a1dd9f..14d508a 100644
--- a/src/main/java/net/thauvin/erik/mobibot/modules/Twitter.java
+++ b/src/main/java/net/thauvin/erik/mobibot/modules/Twitter.java
@@ -44,16 +44,13 @@ import twitter4j.conf.ConfigurationBuilder;
  * @since 1.0
  */
 public final class Twitter extends ThreadedModule {
-    /**
-     * The twitter command.
-     */
-    public static final String TWITTER_CMD = "twitter";
-
     // The property keys.
     private static final String CONSUMER_KEY_PROP = "twitter-consumerKey";
     private static final String CONSUMER_SECRET_PROP = "twitter-consumerSecret";
     private static final String TOKEN_PROP = "twitter-token";
     private static final String TOKEN_SECRET_PROP = "twitter-tokenSecret";
+    // The twitter command.
+    private static final String TWITTER_CMD = "twitter";
 
     /**
      * Creates a new {@link Twitter} instance.