diff --git a/lib/feed.xml b/lib/feed.xml
index 584759e2..65c7fef1 100644
--- a/lib/feed.xml
+++ b/lib/feed.xml
@@ -33,7 +33,7 @@
       <updated>{{ post.date | date_to_xmlschema }}</updated>
 
       <id>{{ post.id | prepend: url_base | xml_escape }}</id>
-      <content type="html">{{ post.content | markdownify | xml_escape }}</content>
+      <content type="html" xml:base="{{ post.url | prepend: url_base | xml_escape }}">{{ post.content | markdownify | xml_escape }}</content>
 
       {% if post.author %}
         <author>