diff --git a/platform/lang-impl/src/com/intellij/codeInsight/daemon/impl/DaemonListeners.java b/platform/lang-impl/src/com/intellij/codeInsight/daemon/impl/DaemonListeners.java
index 7c6047cfa375..2ab33ea0245d 100644
--- a/platform/lang-impl/src/com/intellij/codeInsight/daemon/impl/DaemonListeners.java
+++ b/platform/lang-impl/src/com/intellij/codeInsight/daemon/impl/DaemonListeners.java
@@ -286,7 +286,7 @@ class DaemonListeners implements Disposable {
     if (project != null && project != myProject) return false;
     // cached is essential here since we do not want to create PSI file in alien project
     PsiFile psiFile = PsiDocumentManager.getInstance(project == null ? myProject : project).getCachedPsiFile(document);
-    return psiFile != null;
+    return psiFile != null && psiFile.getOriginalFile() == psiFile;
   }
 
   public void dispose() {