diff --git a/jps/jps-common/src/org/jetbrains/kotlin/config/KotlinSourceRootType.kt b/jps/jps-common/src/org/jetbrains/kotlin/config/KotlinSourceRootType.kt
index 680ffeaa67c..bd1826dfac7 100644
--- a/jps/jps-common/src/org/jetbrains/kotlin/config/KotlinSourceRootType.kt
+++ b/jps/jps-common/src/org/jetbrains/kotlin/config/KotlinSourceRootType.kt
@@ -15,5 +15,9 @@ sealed class KotlinSourceRootType : JpsElementTypeBase<JavaSourceRootProperties>
     object TestSource : KotlinSourceRootType()
 
     override fun createDefaultProperties() = JpsJavaExtensionService.getInstance().createSourceRootProperties("")
+
+    companion object {
+        val ALL_SOURCES = setOf(Source, TestSource)
+    }
 }