diff --git a/src/SMESH/SMESH_subMesh.cxx b/src/SMESH/SMESH_subMesh.cxx
index e9811cfff..5fae7685a 100644
--- a/src/SMESH/SMESH_subMesh.cxx
+++ b/src/SMESH/SMESH_subMesh.cxx
@@ -2203,6 +2203,9 @@ void SMESH_subMesh::DeleteEventListener(EventListener* listener)
       delete l_d->second;
     }
     _eventListeners.erase( l_d );
+
+    if ( l_d->first && !l_d->first->IsDeletable() )
+      l_d->first->myBusySM.erase( this );
   }
 }