diff --git a/url.txt b/url.txt
index fbf0cbf..ad3a6f0 100644
--- a/url.txt
+++ b/url.txt
@@ -1,2 +1,4 @@
 * Doc OCamlSDL
   http://ocamlsdl.sourceforge.net/doc/html/
+* SDL Tutorial
+  http://wiki.njh.eu/OCaml_and_SDL