diff --git a/mozilla/js/src/xpconnect/loader/mozJSComponentLoader.cpp b/mozilla/js/src/xpconnect/loader/mozJSComponentLoader.cpp
index ee7e2eecc58..aa7bb8bfa1a 100644
--- a/mozilla/js/src/xpconnect/loader/mozJSComponentLoader.cpp
+++ b/mozilla/js/src/xpconnect/loader/mozJSComponentLoader.cpp
@@ -194,7 +194,7 @@ mozJSComponentLoader::Init(nsIComponentManager *aCompMgr, nsISupports *aReg)
     return NS_OK;
 }
 
-NS_IMETHODIMP
+nsresult
 mozJSComponentLoader::ReallyInit()
 {
     nsresult rv;