diff --git a/platform/lang-impl/src/com/intellij/codeInsight/completion/CompletionProgressIndicator.java b/platform/lang-impl/src/com/intellij/codeInsight/completion/CompletionProgressIndicator.java
index 558af206731d..0c68e1599c97 100644
--- a/platform/lang-impl/src/com/intellij/codeInsight/completion/CompletionProgressIndicator.java
+++ b/platform/lang-impl/src/com/intellij/codeInsight/completion/CompletionProgressIndicator.java
@@ -135,7 +135,7 @@ public class CompletionProgressIndicator extends ProgressIndicatorBase implement
       @Override
       public void propertyChange(PropertyChangeEvent evt) {
         if (evt.getNewValue() != null) {
-          LOG.error("An attempt to change the lookup during completion");
+          LOG.error("An attempt to change the lookup during completion, phase = " + CompletionServiceImpl.getCompletionPhase());
         }
       }
     };