diff --git a/lib/roles/provider.js b/lib/roles/provider.js
index bc661048..2c8fccb8 100644
--- a/lib/roles/provider.js
+++ b/lib/roles/provider.js
@@ -257,8 +257,8 @@ module.exports = function(options) {
   }
 
   function tryKillWorker(id) {
-    var deferred = Promise.defer(),
-        worker = workers[id]
+    var deferred = Promise.defer()
+      , worker = workers[id]
 
     function onExit() {
       cleanupWorker(id)