diff --git a/publish.el b/publish.el
index a61d25c..350e15e 100755
--- a/publish.el
+++ b/publish.el
@@ -24,6 +24,7 @@
 (require 'htmlize)
 (require 'org)
 
+(setq org-html-doctype "html5")
 (setq org-html-htmlize-output-type 'css)
 (setq org-export-time-stamp-file nil)
 (setq org-html-validation-link nil)