diff --git a/mozilla/xpcom/proxy/src/nsProxyObjectManager.cpp b/mozilla/xpcom/proxy/src/nsProxyObjectManager.cpp
index e597767794d..c8c12d1a994 100644
--- a/mozilla/xpcom/proxy/src/nsProxyObjectManager.cpp
+++ b/mozilla/xpcom/proxy/src/nsProxyObjectManager.cpp
@@ -181,12 +181,12 @@ nsProxyObjectManager::GetProxyObject(nsIEventQueue *destQueue, REFNSIID aIID, ns
         }
     }
     
-    nsCOMPtr<nsISupports> realObject;
+    nsISupports* realObject;
     
     // we need to do make sure that we addref the passed in object as well as ensure
     // that it is of the requested IID;
     
-    rv = aObj->QueryInterface(aIID, getter_AddRefs(realObject));
+    rv = aObj->QueryInterface(aIID, (void**)&realObject);
 
     if ( NS_FAILED( rv ) )
         return rv;