diff --git a/README.md b/README.md
index eb1fb49..d4be29c 100644
--- a/README.md
+++ b/README.md
@@ -398,7 +398,6 @@
 ### Lua
 
 * [Lua编程入门](https://github.com/andycai/luaprimer)
-* [Lua源码欣赏](http://www.codingnow.com/temp/readinglua.pdf)
 
 ### Haskell