diff --git a/idea/idea-jps-common/src/org/jetbrains/kotlin/config/KotlinRootType.kt b/idea/idea-jps-common/src/org/jetbrains/kotlin/config/KotlinRootType.kt
index 0f236b66e20..689ac3c0748 100644
--- a/idea/idea-jps-common/src/org/jetbrains/kotlin/config/KotlinRootType.kt
+++ b/idea/idea-jps-common/src/org/jetbrains/kotlin/config/KotlinRootType.kt
@@ -11,8 +11,9 @@ interface KotlinRootType {
 fun isSameRootType(kotlinRoot: KotlinRootType, other: Any?): Boolean {
     if (kotlinRoot.isTestRoot()) {
         if (other is JavaResourceRootType || other is JavaSourceRootType) {
+            val invokeLevel = 3
             val stack = Thread.currentThread().stackTrace
-            if (stack.size > 2 && "isTestSource" == stack[2].methodName && "com.intellij.openapi.roots.impl.SourceFolderImpl" == stack[2].className) {
+            if (stack.size > invokeLevel && "isTestSource" == stack[invokeLevel].methodName && "com.intellij.openapi.roots.impl.SourceFolderImpl" == stack[invokeLevel].className) {
                 if (JavaResourceRootType.TEST_RESOURCE == other) {
                     return true
                 }