diff --git a/js/gdm/loginDialog.js b/js/gdm/loginDialog.js
index d48ea5416..802c7c260 100644
--- a/js/gdm/loginDialog.js
+++ b/js/gdm/loginDialog.js
@@ -1059,9 +1059,10 @@ var LoginDialog = GObject.registerClass({
         let tasks = [
             () => {
                 if (this._disableUserList)
-                    return;
+                    return null;
 
                 this._timedLoginUserListHold = this._waitForItemForUser(userName);
+                return this._timedLoginUserListHold;
             },
 
             () => {