diff --git a/docs/env.md b/docs/env.md
index ee5c9c1c8..b38cd176a 100644
--- a/docs/env.md
+++ b/docs/env.md
@@ -30,4 +30,4 @@ Protocol (tcp or udp), e.g. `DB_PORT_5432_TCP_PROTO=tcp`
 <b><i>name</i>\_NAME</b><br>
 Fully qualified container name, e.g. `DB_1_NAME=/myapp_web_1/myapp_db_1`
 
-[Docker links]: http://docs.docker.io/en/latest/use/port_redirection/#linking-a-container
+[Docker links]: http://docs.docker.com/userguide/dockerlinks/