diff --git a/mod/forum/templates/forum_actionbar.mustache b/mod/forum/templates/forum_actionbar.mustache
index 111d7fefafb..a0f089d0b96 100644
--- a/mod/forum/templates/forum_actionbar.mustache
+++ b/mod/forum/templates/forum_actionbar.mustache
@@ -57,7 +57,7 @@
         <div class="navitem">
             {{{newdiscussionbtn}}}
         </div>
-        <div class="ml-sm-auto d-flex">
+        <div class="ml-sm-auto navitem">
             {{#subscribetoforum}}
                 <a class="btn btn-secondary" href="{{ subscribetoforum }}">{{#str}}subscribe, mod_forum {{/str}}</a>
             {{/subscribetoforum}}