diff --git a/ui/scripts/system.js b/ui/scripts/system.js
index def6d443026..1dcf7c465f6 100644
--- a/ui/scripts/system.js
+++ b/ui/scripts/system.js
@@ -9736,7 +9736,7 @@
                     args.response.success({data:{}});
                   },
                   error: function(json) {
-                    args.response.error(parseXMLHttpResponse(XMLHttpResponse));
+                    args.response.error(parseXMLHttpResponse(json));
                   }
                 });
               },