diff --git a/templates/post.twig b/templates/post.twig
index b35759ecaaa62b81e0323444a5762e0b24139b9b..b19f50137205b770e024d1206a5aab92ae719c09 100644
--- a/templates/post.twig
+++ b/templates/post.twig
@@ -1,6 +1,5 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" {# -#}
- "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
+<!DOCTYPE html>
+<html>
<head>
<meta charset="utf-8"/>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>