diff --git a/compiler/cli/src/org/jetbrains/kotlin/cli/jvm/compiler/ClasspathRootsResolver.kt b/compiler/cli/src/org/jetbrains/kotlin/cli/jvm/compiler/ClasspathRootsResolver.kt
index dc9a3000100..40b18c71335 100644
--- a/compiler/cli/src/org/jetbrains/kotlin/cli/jvm/compiler/ClasspathRootsResolver.kt
+++ b/compiler/cli/src/org/jetbrains/kotlin/cli/jvm/compiler/ClasspathRootsResolver.kt
@@ -57,7 +57,7 @@ internal class ClasspathRootsResolver(
 
     data class RootsAndModules(val roots: List<JavaRoot>, val modules: List<JavaModule>)
 
-    fun convertClasspathRoots(contentRoots: Iterable<ContentRoot>): RootsAndModules {
+    fun convertClasspathRoots(contentRoots: List<ContentRoot>): RootsAndModules {
         val result = mutableListOf<JavaRoot>()
 
         val modules = ArrayList<JavaModule>()