diff --git a/kallithea/templates/admin/notifications/notifications_data.html b/kallithea/templates/admin/notifications/notifications_data.html
--- a/kallithea/templates/admin/notifications/notifications_data.html
+++ b/kallithea/templates/admin/notifications/notifications_data.html
@@ -10,7 +10,7 @@ unread = lambda n:{False:'unread'}.get(n
   <div id="notification_${notification.notification.notification_id}" class="container ${unread(notification.read)}">
     <div class="notification-header">
       <div class="gravatar">
-          <img alt="gravatar" src="${h.gravatar_url(notification.notification.created_by_user.email,24)}"/>
+        ${h.gravatar(notification.notification.created_by_user.email, size=24)}
       </div>
       <div class="desc ${unread(notification.read)}">
       <a href="${url('notification', notification_id=notification.notification.notification_id)}">${notification.notification.description}</a>