diff --git a/README.thinkpad b/README.thinkpad
index 7f1ecd78..fbc7766e 100644
--- a/README.thinkpad
+++ b/README.thinkpad
@@ -92,7 +92,7 @@ Joe in Australia's Thinkpad Password Recovery Site
 http://www.ja.olm.net/unlock
 
 Atmel 24RF08 Datasheet
-http://www.atmel.com/atmel/products/prod227.html
+http://www.atmel.com/atmel/products/prod227.htm
 
 
 (*) 'Write Quick 0' is not an actual write and should never generate