--- a/services/cloudsync/tests/xpcshell/test_tabs.js
+++ b/services/cloudsync/tests/xpcshell/test_tabs.js
@@ -4,17 +4,17 @@
 "use strict";
 
 Cu.import("resource://gre/modules/CloudSync.jsm");
 
 function run_test () {
   run_next_test();
 }
 
-add_task(function test_get_remote_tabs () {
+add_task(function* test_get_remote_tabs () {
   let cloudSync = CloudSync();
   let clients = yield cloudSync.tabs.getRemoteTabs();
   equal(clients.length, 0);
 
   yield cloudSync.tabs.mergeRemoteTabs({
       id: "001",
       name: "FakeClient",
     },[