diff --git a/compose/extends.md b/compose/extends.md
index 556b26d43a..1b7ba30592 100644
--- a/compose/extends.md
+++ b/compose/extends.md
@@ -297,7 +297,7 @@ replaces the old value.
 >  `build` and `image` in Compose file version 1
 >
 > In the case of `build` and `image`, when using
-> [version 1 of the Compose file format](https://docs.docker.com/compose/compose-file/compose-file-v1/), using one
+> [version 1 of the Compose file format](compose-file/compose-file-v1/), using one
 > option in the local service causes Compose to discard the other option if it
 > was defined in the original service.
 >