diff --git a/mozilla/content/events/src/nsEventListenerManager.cpp b/mozilla/content/events/src/nsEventListenerManager.cpp
index 6c02f1a7504..6bdf59508c1 100644
--- a/mozilla/content/events/src/nsEventListenerManager.cpp
+++ b/mozilla/content/events/src/nsEventListenerManager.cpp
@@ -1176,6 +1176,7 @@ found:
                                            EmptyString(), aDOMEvent);
           }
           if (*aDOMEvent) {
+            nsRefPtr<nsIDOMEventListener> kungFuDeathGrip = ls->mListener;
             if (useTypeInterface) {
               DispatchToInterface(*aDOMEvent, ls->mListener,
                                   dispData->method, *typeData->iid);