diff --git a/assets/javascripts/discourse/routes/upgrade-show.js b/assets/javascripts/discourse/routes/upgrade-show.js
index 94e5852..fdde47f 100644
--- a/assets/javascripts/discourse/routes/upgrade-show.js
+++ b/assets/javascripts/discourse/routes/upgrade-show.js
@@ -54,6 +54,6 @@ export default Route.extend({
   },
 
   deactivate() {
-    this.controllerFor("upgrade").stopBus();
+    this.controllerFor("upgrade.show").stopBus();
   },
 });