diff --git a/mozilla/js/src/xpconnect/src/XPCNativeWrapper.cpp b/mozilla/js/src/xpconnect/src/XPCNativeWrapper.cpp
index d6f36fe61e0..ed7631756e4 100644
--- a/mozilla/js/src/xpconnect/src/XPCNativeWrapper.cpp
+++ b/mozilla/js/src/xpconnect/src/XPCNativeWrapper.cpp
@@ -1390,7 +1390,7 @@ XPCNativeWrapper::GetNewOrUsed(JSContext *cx, XPCWrappedNative *wrapper)
   if (xpcwrappedjs) {
     XPCThrower::Throw(NS_ERROR_INVALID_ARG, cx);
 
-    return JS_FALSE;
+    return nsnull;
   }
 
   JSObject *obj = wrapper->GetNativeWrapper();