diff --git a/lisp/ox-html.el b/lisp/ox-html.el
index d247635e23..48b913aa69 100644
--- a/lisp/ox-html.el
+++ b/lisp/ox-html.el
@@ -217,7 +217,7 @@
     ("xhtml-frameset" . "<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Frameset//EN\"
 \"http://www.w3.org/TR/xhtml1/DTD/xhtml1-frameset.dtd\">")
     ("xhtml-11" . "<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.1//EN\"
-\"http://www.w3.org/TR/xhtml1/DTD/xhtml11.dtd\">")
+\"http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd\">")
 
     ("html5" . "<!DOCTYPE html>")
     ("xhtml5" . "<!DOCTYPE html>"))
