diff --git a/plugins/groovy/src/org/jetbrains/plugins/groovy/dsl/GroovyDslFileIndex.java b/plugins/groovy/src/org/jetbrains/plugins/groovy/dsl/GroovyDslFileIndex.java
index 6d8ef44a8573..67f34354b175 100644
--- a/plugins/groovy/src/org/jetbrains/plugins/groovy/dsl/GroovyDslFileIndex.java
+++ b/plugins/groovy/src/org/jetbrains/plugins/groovy/dsl/GroovyDslFileIndex.java
@@ -20,6 +20,7 @@ import com.intellij.notification.NotificationListener;
 import com.intellij.notification.NotificationType;
 import com.intellij.notification.Notifications;
 import com.intellij.openapi.application.ApplicationManager;
+import com.intellij.openapi.application.ex.ApplicationManagerEx;
 import com.intellij.openapi.diagnostic.Logger;
 import com.intellij.openapi.editor.Document;
 import com.intellij.openapi.editor.event.DocumentAdapter;
@@ -369,6 +370,10 @@ public class GroovyDslFileIndex extends ScalarIndexExtension<String> {
     final String exceptionText = writer.toString();
     LOG.info(exceptionText);
 
+    if (!ApplicationManagerEx.getApplicationEx().isInternal() && !ProjectRootManager.getInstance(project).getFileIndex().isInContent(vfile)) {
+      return;
+    }
+
     ApplicationManager.getApplication().getMessageBus().syncPublisher(Notifications.TOPIC).notify(
       new Notification("Groovy DSL parsing", "DSL script execution error",
                        "<p>" + e.getMessage() + "</p><p><a href=\"\">Click here to investigate.</a></p>", NotificationType.ERROR,