diff --git a/README b/README
index 95dd4797b..0cc37e655 100644
--- a/README
+++ b/README
@@ -2837,5 +2837,5 @@ Jamie F. Olson.
 [PDF]: http://www.adobe.com/pdf/
 [reveal.js]: http://lab.hakim.se/reveal-js/
 [FictionBook2]: http://www.fictionbook.org/index.php/Eng:XML_Schema_Fictionbook_2.1
-[lua]: TODO
+[lua]: http://www.lua.org