diff --git a/app/assets/javascripts/discourse/components/topic-category.js.es6 b/app/assets/javascripts/discourse/components/topic-category.js.es6
new file mode 100644
index 00000000000..97fcde13cda
--- /dev/null
+++ b/app/assets/javascripts/discourse/components/topic-category.js.es6
@@ -0,0 +1,2 @@
+// Injections don't occur without a class
+export default Ember.Component.extend();
diff --git a/app/assets/javascripts/discourse/templates/topic.hbs b/app/assets/javascripts/discourse/templates/topic.hbs
index 5c6689f0d6e..d77551341af 100644
--- a/app/assets/javascripts/discourse/templates/topic.hbs
+++ b/app/assets/javascripts/discourse/templates/topic.hbs
@@ -53,7 +53,7 @@
             </h1>
 
             {{#unless model.isPrivateMessage}}
-              {{topic-category topic=model}}
+              {{topic-category topic=model class="topic-category"}}
             {{/unless}}
           {{/if}}
         </div>