diff --git a/lib/middleware/common.js b/lib/middleware/common.js
index 179e8fe70..e4960f30c 100644
--- a/lib/middleware/common.js
+++ b/lib/middleware/common.js
@@ -11,6 +11,7 @@ var PromiseContainer = function () {
   var promise
 
   this.then = function (success, error) {
+    error = error || _.noop
     return promise.then(success).catch(error)
   }