diff --git a/doc/features.mdwn b/doc/features.mdwn
index 07ce648ea..215c1cecd 100644
--- a/doc/features.mdwn
+++ b/doc/features.mdwn
@@ -71,8 +71,10 @@ you would care to syndicate.
 ## Valid html and [[css]]
 
 Ikiwiki aims to produce 
-[valid XHTML 1.0](http://validator.w3.org/check?url=referer). Ikiwiki
-generates html using [[templates]], and uses [[css]], so you
+[valid XHTML 1.0](http://validator.w3.org/check?url=referer).
+(Experimental HTML5 support is also available.)
+
+Ikiwiki generates html using [[templates]], and uses [[css]], so you
 can change the look and layout of all pages in any way you would like.
 
 ## [[Plugins]]