diff --git a/dom/icc/src/StkCommandEvent.h b/dom/icc/src/StkCommandEvent.h
index 30ac05d87b5f..feeadeb95c63 100644
--- a/dom/icc/src/StkCommandEvent.h
+++ b/dom/icc/src/StkCommandEvent.h
@@ -22,7 +22,6 @@ public:
   NS_DECL_ISUPPORTS_INHERITED
   NS_FORWARD_TO_NSDOMEVENT
   NS_DECL_NSIDOMMOZSTKCOMMANDEVENT
-  NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(StkCommandEvent, nsDOMEvent)
 
   static already_AddRefed<StkCommandEvent>
   Create(EventTarget* aOwner, const nsAString& aMessage);