diff --git a/components/templates/src/builtins/atom.xml b/components/templates/src/builtins/atom.xml
index 8b2d331e5c..2f16095563 100644
--- a/components/templates/src/builtins/atom.xml
+++ b/components/templates/src/builtins/atom.xml
@@ -40,7 +40,7 @@
         {% if page.summary %}
         <summary type="html">{{ page.summary }}</summary>
         {% else %}
-        <content type="html">{{ page.content }}</content>
+        <content type="html" xml:base="{{ page.permalink | escape_xml | safe }}">{{ page.content }}</content>
         {% endif %}
     </entry>
     {%- endfor %}
diff --git a/components/templates/src/builtins/rss.xml b/components/templates/src/builtins/rss.xml
index 1c09e4cf4d..a684a48af9 100644
--- a/components/templates/src/builtins/rss.xml
+++ b/components/templates/src/builtins/rss.xml
@@ -33,7 +33,7 @@
           </author>
           <link>{{ page.permalink | escape_xml | safe }}</link>
           <guid>{{ page.permalink | escape_xml | safe }}</guid>
-          <description>{% if page.summary %}{{ page.summary }}{% else %}{{ page.content }}{% endif %}</description>
+          <description xml:base="{{ page.permalink | escape_xml | safe }}">{% if page.summary %}{{ page.summary }}{% else %}{{ page.content }}{% endif %}</description>
       </item>
       {%- endfor %}
     </channel>