diff --git a/templates/atom/header.tmpl b/templates/atom/header.tmpl
--- a/templates/atom/header.tmpl
+++ b/templates/atom/header.tmpl
@@ -1,4 +1,4 @@
 Content-type: application/atom+xml; charset={encoding}
 
 <?xml version="1.0" encoding="{encoding}"?>
-<feed xmlns="http://www.w3.org/2005/Atom" xmlns:xhtml="http://www.w3.org/1999/xhtml">
\ No newline at end of file
+<feed xmlns="http://www.w3.org/2005/Atom">
\ No newline at end of file