diff --git a/platform/lang-impl/src/com/intellij/codeInsight/daemon/impl/DaemonCodeAnalyzerImpl.java b/platform/lang-impl/src/com/intellij/codeInsight/daemon/impl/DaemonCodeAnalyzerImpl.java
index 3b1a12d1a98b..fa912c32c798 100644
--- a/platform/lang-impl/src/com/intellij/codeInsight/daemon/impl/DaemonCodeAnalyzerImpl.java
+++ b/platform/lang-impl/src/com/intellij/codeInsight/daemon/impl/DaemonCodeAnalyzerImpl.java
@@ -993,7 +993,7 @@ public final class DaemonCodeAnalyzerImpl extends DaemonCodeAnalyzerEx implement
 
     Collection<FileEditor> result = new HashSet<>(activeTextEditors.size());
     Collection<VirtualFile> files = new HashSet<>(activeTextEditors.size());
-    if (!app.isUnitTestMode()) {
+    if (!app.isUnitTestMode() && !myProject.isDefault()) {
       // editors in tabs
       for (FileEditor tabEditor : myFileEditorManager.getSelectedEditorWithRemotes()) {
         if (!tabEditor.isValid()) continue;