diff --git templates/html.tpl.php templates/html.tpl.php
index 8d560b1..07b56e1 100644
--- templates/html.tpl.php
+++ templates/html.tpl.php
@@ -41,9 +41,8 @@
  * @see template_preprocess_html()
  * @see template_process()
  */
-?><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML+RDFa 1.0//EN"
-  "http://www.w3.org/MarkUp/DTD/xhtml-rdfa-1.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="<?php print $language->language; ?>" version="XHTML+RDFa 1.0" dir="<?php print $language->dir; ?>"<?php print $rdf_namespaces; ?>>
+?><!DOCTYPE html>
+<html lang="<?php print $language->language; ?>" dir="<?php print $language->dir; ?>"<?php print $rdf_namespaces; ?>>
 
 <head profile="<?php print $grddl_profile; ?>">
   <?php print $head; ?>
