diff --git a/app/assets/javascripts/discourse/controllers/topic-unsubscribe.js.es6 b/app/assets/javascripts/discourse/controllers/topic-unsubscribe.js.es6
index e76daabf650..a2611ebdcbd 100644
--- a/app/assets/javascripts/discourse/controllers/topic-unsubscribe.js.es6
+++ b/app/assets/javascripts/discourse/controllers/topic-unsubscribe.js.es6
@@ -1,6 +1,4 @@
-import ObjectController from "discourse/controllers/object";
-
-export default ObjectController.extend({
+export default Ember.Controller.extend({
 
   stopNotificiationsText: function() {
     return I18n.t("topic.unsubscribe.stop_notifications", { title: this.get("model.fancyTitle") });