diff --git a/incorporealcms/templates/base.html b/incorporealcms/templates/base.html
index 307ae0f..b19814f 100644
--- a/incorporealcms/templates/base.html
+++ b/incorporealcms/templates/base.html
@@ -1,4 +1,5 @@
 <!doctype html>
+<html lang="en">
 <title>{{ title }}{% if title %} - {% endif %}{{ config.TITLE_SUFFIX }}</title>
 {% if title %}<meta property="og:title" content="{{ title }}">{% endif %}
 {% if description %}<meta property="og:description" content="{{ description }}">{% endif %}
@@ -30,3 +31,4 @@
         <i>Last modified: {{ mtime }}</i>
     </footer>
 </div>
+</html>
