diff --git a/modules/kobalt-plugin-api/src/main/kotlin/com/beust/kobalt/maven/DependencyManager.kt b/modules/kobalt-plugin-api/src/main/kotlin/com/beust/kobalt/maven/DependencyManager.kt
index 4bb33316..592bbe82 100644
--- a/modules/kobalt-plugin-api/src/main/kotlin/com/beust/kobalt/maven/DependencyManager.kt
+++ b/modules/kobalt-plugin-api/src/main/kotlin/com/beust/kobalt/maven/DependencyManager.kt
@@ -180,7 +180,7 @@ class DependencyManager @Inject constructor(val executors: KobaltExecutors, val
 
         // Make sure that classes/ and test-classes/ are always at the top of this classpath,
         // so that older versions of that project on the classpath don't shadow them
-        val result2 = arrayListOf(FileDependency(KFiles.makeOutputDir(project).absolutePath),
+        val result2 = listOf(FileDependency(KFiles.makeOutputDir(project).absolutePath),
             FileDependency(KFiles.makeOutputTestDir(project).absolutePath)) +
             reorderDependencies(result)
         return result2