diff --git a/README b/README
index ff1293e8..35a25099 100644
--- a/README
+++ b/README
@@ -61,12 +61,14 @@ cdist was tested or is know to run on at least
 
  * [Archlinux](http://www.archlinux.org/)
  * [Debian](http://www.debian.org/)
+ * [CentOS](http://www.centos.org/)
  * [Fedora](http://fedoraproject.org/)
  * [Gentoo](http://www.gentoo.org/)
  * [Mac OS X](http://www.apple.com/macosx/)
  * [OpenBSD](http://www.openbsd.org)
  * [Redhat](http://www.redhat.com/)
  * [Ubuntu](http://www.ubuntu.com/)
+ * [XenServer](http://www.citrix.com/xenserver/)
 
 
 ## Requirements