diff --git a/app/assets/templates/comment-stream_tpl.jst.hbs b/app/assets/templates/comment-stream_tpl.jst.hbs
index 2525f1c5b..d00434fb8 100644
--- a/app/assets/templates/comment-stream_tpl.jst.hbs
+++ b/app/assets/templates/comment-stream_tpl.jst.hbs
@@ -22,7 +22,7 @@
       <form accept-charset="UTF-8" action="/posts/{{id}}/comments" class="new_comment" id="new_comment_on_{{id}}" method="post">
         <textarea class="comment_box" id="comment_text_on_{{id}}" name="text" rows="2" required placeholder="{{t "stream.comment"}}" />
         <div class="submit_button">
-          <input class="button creation" id="comment_submit_{{id}}" name="commit" type="submit" value="{{t "stream.comment"}}" />
+          <input class="btn btn-primary creation" id="comment_submit_{{id}}" name="commit" type="submit" value="{{t "stream.comment"}}" />
         </div>
       </form>
     </div>