diff --git a/mozilla/js/src/xpconnect/src/xpccomponents.cpp b/mozilla/js/src/xpconnect/src/xpccomponents.cpp
index 51c0dff603c..716fe4bf208 100644
--- a/mozilla/js/src/xpconnect/src/xpccomponents.cpp
+++ b/mozilla/js/src/xpconnect/src/xpccomponents.cpp
@@ -1680,9 +1680,8 @@ nsXPCComponents::AttachNewComponentsObject(XPCCallContext& ccx,
     if(!iface)
         return JS_FALSE;
 
-    nsCOMPtr<XPCWrappedNative> wrapper = 
-        dont_AddRef(XPCWrappedNative::
-            GetNewOrUsed(ccx, cholder, aScope, iface, nsnull));
+    nsCOMPtr<nsIXPConnectJSObjectHolder> wrapper(dont_AddRef(
+        XPCWrappedNative::GetNewOrUsed(ccx, cholder, aScope, iface, nsnull)));
     if(!wrapper)
         return JS_FALSE;