Index: src/views/pages/post.ejs
===================================================================
--- src/views/pages/post.ejs	(revision 3a2c9d3bd2a16914b0e05ace0ec9a4b522932dd6)
+++ src/views/pages/post.ejs	(revision 52ea6df4abea1a346a912f9f11d8e52a474df932)
@@ -116,5 +116,8 @@
                     <% mine.forEach(function(o){ %>
                       <li class="comment comment-reply">
-                        <div class="comment-avatar"><span><%= t('fedi.you').charAt(0).toUpperCase() %></span></div>
+                        <div class="comment-avatar">
+                          <% if (typeof siteAvatar !== 'undefined' && siteAvatar) { %><img src="<%= siteAvatar %>" alt="">
+                          <% } else { %><span><%= t('fedi.you').charAt(0).toUpperCase() %></span><% } %>
+                        </div>
                         <div class="comment-body">
                           <div class="comment-meta"><span class="comment-author"><%= t('fedi.you') %></span></div>