1 files changed, 3 insertions, 3 deletions
diff --git a/services/sync/modules/stages/declined.js b/services/sync/modules/stages/declined.js
index b0877e929..ff8a14181 100644
--- a/services/sync/modules/stages/declined.js
+++ b/services/sync/modules/stages/declined.js
@@ -11,7 +11,7 @@
 
 this.EXPORTED_SYMBOLS = ["DeclinedEngines"];
 
-const {utils: Cu} = Components;
+var {utils: Cu} = Components;
 
 Cu.import("resource://services-sync/constants.js");
 Cu.import("resource://gre/modules/Log.jsm");
@@ -29,8 +29,8 @@ this.DeclinedEngines = function (service) {
 }
 this.DeclinedEngines.prototype = {
   updateDeclined: function (meta, engineManager=this.service.engineManager) {
-    let enabled = new Set([e.name for each (e in engineManager.getEnabled())]);
-    let known = new Set([e.name for each (e in engineManager.getAll())]);
+    let enabled = new Set(engineManager.getEnabled().map(e => e.name));
+    let known = new Set(engineManager.getAll().map(e => e.name));
     let remoteDeclined = new Set(meta.payload.declined || []);
     let localDeclined = new Set(engineManager.getDeclined());