diff --git a/plone/app/discussion/browser/comments.pt b/plone/app/discussion/browser/comments.pt
index 4a23585..b856ad8 100644
--- a/plone/app/discussion/browser/comments.pt
+++ b/plone/app/discussion/browser/comments.pt
@@ -74,6 +74,7 @@
                 </div>
 
                 <a href="#" class="reply-to-comment-button" title="reply to this comment"
+                   tal:condition="not:isAnon"
                    tal:attributes="onclick string:createReplyToCommentForm(${reply/id});
                                    id string:reply-to-comment-${reply/id}-button;
                                    href string:#comment-${reply/id}">