diff --git a/README.md b/README.md
index 5915305..8407a92 100644
--- a/README.md
+++ b/README.md
@@ -5,7 +5,7 @@
 <img src="mux.jpg" alt="smux" height="120px" /> 
 
 [1]: https://godoc.org/github.com/xtaci/smux?status.svg
-[2]: https://godoc.org/github.com/xtaci/smux
+[2]: https://godoc.org/gopkg.in/xtaci/smux.v1
 [3]: https://img.shields.io/badge/license-MIT-blue.svg
 [4]: LICENSE
 [5]: https://travis-ci.org/xtaci/smux.svg?branch=master