diff --git a/idea/idea-frontend-independent/src/org/jetbrains/kotlin/idea/util/psiUtils.kt b/idea/idea-frontend-independent/src/org/jetbrains/kotlin/idea/util/psiUtils.kt
index 5418b103dd2..1e7b03258cd 100644
--- a/idea/idea-frontend-independent/src/org/jetbrains/kotlin/idea/util/psiUtils.kt
+++ b/idea/idea-frontend-independent/src/org/jetbrains/kotlin/idea/util/psiUtils.kt
@@ -40,7 +40,7 @@ private const val ELEMENT_TAG = "ELEMENT"
 fun KtClassOrObject.classIdIfNonLocal(): ClassId? {
     if (KtPsiUtil.isLocal(this)) return null
     val packageName = containingKtFile.packageFqName
-    val classesNames = parentsOfType<KtDeclaration>().map { it.name }.toList()
+    val classesNames = parentsOfType<KtDeclaration>().map { it.name }.toList().asReversed()
     if (classesNames.any { it == null }) return null
     return ClassId(packageName, FqName(classesNames.joinToString(separator = ".")), /*local=*/false)
 }