diff --git a/modules/kobalt-plugin-api/src/main/kotlin/com/beust/kobalt/api/ICompilerFlagContributor.kt b/modules/kobalt-plugin-api/src/main/kotlin/com/beust/kobalt/api/ICompilerFlagContributor.kt
index 13396d0e..8e82cbfe 100644
--- a/modules/kobalt-plugin-api/src/main/kotlin/com/beust/kobalt/api/ICompilerFlagContributor.kt
+++ b/modules/kobalt-plugin-api/src/main/kotlin/com/beust/kobalt/api/ICompilerFlagContributor.kt
@@ -5,4 +5,10 @@ package com.beust.kobalt.api
  */
 interface ICompilerFlagContributor : IContributor {
     fun flagsFor(project: Project, context: KobaltContext, currentFlags: List<String>): List<String>
+    val flagPriority: Int
+        get() = DEFAULT_FLAG_PRIORITY
+
+    companion object {
+        val DEFAULT_FLAG_PRIORITY = 20
+    }
 }
diff --git a/modules/kobalt-plugin-api/src/main/kotlin/com/beust/kobalt/internal/BaseJvmPlugin.kt b/modules/kobalt-plugin-api/src/main/kotlin/com/beust/kobalt/internal/BaseJvmPlugin.kt
index 7a32a6ff..0253125d 100644
--- a/modules/kobalt-plugin-api/src/main/kotlin/com/beust/kobalt/internal/BaseJvmPlugin.kt
+++ b/modules/kobalt-plugin-api/src/main/kotlin/com/beust/kobalt/internal/BaseJvmPlugin.kt
@@ -2,8 +2,20 @@ package com.beust.kobalt.internal
 
 import com.beust.kobalt.api.ConfigPlugin
 import com.beust.kobalt.api.ICompilerFlagContributor
+import com.beust.kobalt.api.Project
 
 /**
  * Base class for JVM language plug-ins.
  */
-abstract class BaseJvmPlugin<T>: ConfigPlugin<T>(), ICompilerFlagContributor
\ No newline at end of file
+abstract class BaseJvmPlugin<T> : ConfigPlugin<T>(), ICompilerFlagContributor {
+    companion object {
+        // Run before other flag contributors
+        val FLAG_CONTRIBUTOR_PRIORITY = ICompilerFlagContributor.DEFAULT_FLAG_PRIORITY - 10
+    }
+
+    protected fun maybeCompilerArgs(project: Project, args: List<String>)
+        = if (accept(project)) args else emptyList()
+
+    override val flagPriority = FLAG_CONTRIBUTOR_PRIORITY
+
+}
\ No newline at end of file
diff --git a/modules/kobalt-plugin-api/src/main/kotlin/com/beust/kobalt/internal/JvmCompiler.kt b/modules/kobalt-plugin-api/src/main/kotlin/com/beust/kobalt/internal/JvmCompiler.kt
index 89b4abab..1c15c048 100644
--- a/modules/kobalt-plugin-api/src/main/kotlin/com/beust/kobalt/internal/JvmCompiler.kt
+++ b/modules/kobalt-plugin-api/src/main/kotlin/com/beust/kobalt/internal/JvmCompiler.kt
@@ -29,10 +29,14 @@ class JvmCompiler @Inject constructor(val dependencyManager: DependencyManager)
             .distinct()
 
         // Plugins that add flags to the compiler
-        val contributorFlags = if (project != null) {
-            context.pluginInfo.compilerFlagContributors.flatMap {
-                it.flagsFor(project, context, info.compilerArgs)
+        val currentFlags = arrayListOf<String>().apply { addAll(info.compilerArgs) }
+        val contributorFlags : List<String> = if (project != null) {
+            val contributors = context.pluginInfo.compilerFlagContributors
+            contributors.sortBy { it.flagPriority }
+            context.pluginInfo.compilerFlagContributors.forEach {
+                currentFlags.addAll(it.flagsFor(project, context, currentFlags))
             }
+            currentFlags
         } else {
             emptyList()
         }
diff --git a/src/main/kotlin/com/beust/kobalt/plugin/java/JavaPlugin.kt b/src/main/kotlin/com/beust/kobalt/plugin/java/JavaPlugin.kt
index f7f87c95..f1cb528d 100644
--- a/src/main/kotlin/com/beust/kobalt/plugin/java/JavaPlugin.kt
+++ b/src/main/kotlin/com/beust/kobalt/plugin/java/JavaPlugin.kt
@@ -38,9 +38,10 @@ class JavaPlugin @Inject constructor(val javaCompiler: JavaCompiler)
         return result
     }
 
+    // ICompilerFlagsContributor
     // ICompilerFlagsContributor
     override fun flagsFor(project: Project, context: KobaltContext, currentFlags: List<String>)
-            = configurationFor(project)?.compilerArgs ?: listOf<String>()
+            = maybeCompilerArgs(project, configurationFor(project)?.compilerArgs ?: listOf<String>())
 
     // ICompilerContributor
     override val sourceSuffixes = listOf("java")
diff --git a/src/main/kotlin/com/beust/kobalt/plugin/kotlin/KotlinCompiler.kt b/src/main/kotlin/com/beust/kobalt/plugin/kotlin/KotlinCompiler.kt
index 5d12f50b..75a41e22 100644
--- a/src/main/kotlin/com/beust/kobalt/plugin/kotlin/KotlinCompiler.kt
+++ b/src/main/kotlin/com/beust/kobalt/plugin/kotlin/KotlinCompiler.kt
@@ -152,7 +152,7 @@ class KConfiguration @Inject constructor(val compiler: KotlinCompiler){
     fun compilerArgs(s: List<String>) = args.addAll(s)
 
     fun compile(project: Project? = null, context: KobaltContext? = null) : TaskResult {
-        return compiler.compile(project, context, dependencies, classpath, source, output, args + "-no-stdlib")
+        return compiler.compile(project, context, dependencies, classpath, source, output, args)
     }
 }
 
diff --git a/src/main/kotlin/com/beust/kobalt/plugin/kotlin/KotlinPlugin.kt b/src/main/kotlin/com/beust/kobalt/plugin/kotlin/KotlinPlugin.kt
index 65cfdf15..6c9a278b 100644
--- a/src/main/kotlin/com/beust/kobalt/plugin/kotlin/KotlinPlugin.kt
+++ b/src/main/kotlin/com/beust/kobalt/plugin/kotlin/KotlinPlugin.kt
@@ -38,7 +38,8 @@ class KotlinPlugin @Inject constructor(val executors: KobaltExecutors)
 
     // ICompilerFlagsContributor
     override fun flagsFor(project: Project, context: KobaltContext, currentFlags: List<String>)
-        = configurationFor(project)?.compilerArgs ?: listOf<String>()
+            = maybeCompilerArgs(project, (configurationFor(project)?.compilerArgs ?: listOf<String>()) +
+                    listOf("-no-stdlib"))
 
     //    override fun generateDoc(project: Project, context: KobaltContext, info: CompilerActionInfo) : TaskResult {
 //        val configs = dokkaConfigurations[project.name]