diff --git a/idea/idea-core/src/org/jetbrains/kotlin/idea/core/script/configuration/utils/utils.kt b/idea/idea-core/src/org/jetbrains/kotlin/idea/core/script/configuration/utils/utils.kt
index 8f9de3061ab..55e608fb881 100644
--- a/idea/idea-core/src/org/jetbrains/kotlin/idea/core/script/configuration/utils/utils.kt
+++ b/idea/idea-core/src/org/jetbrains/kotlin/idea/core/script/configuration/utils/utils.kt
@@ -17,7 +17,7 @@ fun Project.getKtFile(
 ): KtFile? {
     if (virtualFile == null) return null
     if (ktFile != null) {
-        check(ktFile.virtualFile == virtualFile)
+        check(ktFile.originalFile.virtualFile == virtualFile)
         return ktFile
     } else {
         return runReadAction { PsiManager.getInstance(this).findFile(virtualFile) as? KtFile }