diff --git a/app/assets/javascripts/discourse/helpers/bound-avatar.js.es6 b/app/assets/javascripts/discourse/helpers/bound-avatar.js.es6
index a7b1782583a..b8f04b1e6e9 100644
--- a/app/assets/javascripts/discourse/helpers/bound-avatar.js.es6
+++ b/app/assets/javascripts/discourse/helpers/bound-avatar.js.es6
@@ -1,5 +1,6 @@
 import { htmlHelper } from 'discourse-common/lib/helpers';
 import { avatarImg } from 'discourse/lib/utilities';
+import { addExtraUserClasses } from 'discourse/helpers/user-avatar';
 
 export default htmlHelper((user, size) => {
   if (Ember.isEmpty(user)) {
@@ -8,4 +9,5 @@ export default htmlHelper((user, size) => {
 
   const avatarTemplate = Ember.get(user, 'avatar_template');
   return avatarImg({ size, avatarTemplate });
+  return avatarImg(addExtraUserClasses(user, { size, avatarTemplate }));
 });