diff --git a/experimental/plugins_graphdriver.md b/experimental/plugins_graphdriver.md
index de244c41a9..2589ba38be 100644
--- a/experimental/plugins_graphdriver.md
+++ b/experimental/plugins_graphdriver.md
@@ -10,7 +10,7 @@ being started.
 
 # Write a graph driver plugin
 
-See the [plugin documentation](/docs/extend/index.md) for detailed information
+See the [plugin documentation](https://docs.docker.com/engine/extend/) for detailed information
 on the underlying plugin protocol.