diff --git a/platform/xdebugger-impl/src/com/intellij/xdebugger/impl/XDebugSessionImpl.java b/platform/xdebugger-impl/src/com/intellij/xdebugger/impl/XDebugSessionImpl.java
index 9ab13ba0ae74..3582822645d4 100644
--- a/platform/xdebugger-impl/src/com/intellij/xdebugger/impl/XDebugSessionImpl.java
+++ b/platform/xdebugger-impl/src/com/intellij/xdebugger/impl/XDebugSessionImpl.java
@@ -847,7 +847,9 @@ public class XDebugSessionImpl implements XDebugSession {
     if (myStopped) return;
 
     myDebugProcess.stop();
-    myProject.getMessageBus().syncPublisher(XDebuggerManager.TOPIC).processStopped(myDebugProcess);
+    if (!myProject.isDisposed()) {
+      myProject.getMessageBus().syncPublisher(XDebuggerManager.TOPIC).processStopped(myDebugProcess);
+    }
     myCurrentPosition = null;
     myCurrentExecutionStack = null;
     myCurrentStackFrame = null;