base.xml

diff --git a/r2/r2/templates/base.xml b/r2/r2/templates/base.xml
index 8422b2d..11766a4 100644
--- a/r2/r2/templates/base.xml
+++ b/r2/r2/templates/base.xml
@@ -25,11 +25,13 @@
 %>
 <?xml version="1.0" encoding="UTF-8"?>
 <rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" 
-     xmlns:media="http://search.yahoo.com/mrss">
+     xmlns:media="http://search.yahoo.com/mrss"
+     xmlns:atom="http://www.w3.org/2005/Atom">
   <channel>
     <title>${self.Title()}</title>        
     <link>${add_sr("/", force_hostname = True)}</link>
     <description>${c.site.description or ''}</description>
+    <atom:link rel="hub" href="http://pubsubhubbub.appspot.com"/>
     <image>
       <%
         if g.css_killswitch or not c.site.header: