diff --git a/app/assets/javascripts/discourse/components/topic-category.js.es6 b/app/assets/javascripts/discourse/components/topic-category.js.es6
index 58e58e0d1be..97fcde13cda 100644
--- a/app/assets/javascripts/discourse/components/topic-category.js.es6
+++ b/app/assets/javascripts/discourse/components/topic-category.js.es6
@@ -1,7 +1,2 @@
-import computed from 'ember-addons/ember-computed-decorators';
-
-export default Ember.Component.extend({
-
-  @computed('topic.isPrivateMessage')
-
-});
+// Injections don't occur without a class
+export default Ember.Component.extend();