diff --git a/platform/lang-impl/src/com/intellij/execution/impl/ConsoleViewImpl.java b/platform/lang-impl/src/com/intellij/execution/impl/ConsoleViewImpl.java
index 8d7bf9dc79b8..a29cb33d1baf 100644
--- a/platform/lang-impl/src/com/intellij/execution/impl/ConsoleViewImpl.java
+++ b/platform/lang-impl/src/com/intellij/execution/impl/ConsoleViewImpl.java
@@ -661,7 +661,7 @@ public class ConsoleViewImpl extends JPanel implements ConsoleView, ObservableCo
   }
 
   private void cancelHeavyAlarm() {
-    if (myHeavyAlarm != null) {
+    if (myHeavyAlarm != null && !myHeavyAlarm.isDisposed()) {
       myHeavyAlarm.cancelAllRequests();
       ++myHeavyUpdateTicket;
     }