diff --git a/docs/sources/articles/registry_mirror.md b/docs/sources/articles/registry_mirror.md
index 5d5378e234..a7493e9aec 100644
--- a/docs/sources/articles/registry_mirror.md
+++ b/docs/sources/articles/registry_mirror.md
@@ -38,7 +38,7 @@ For example, if your mirror is serving on `http://10.0.0.2:5000`, you would run:
 **NOTE:**
 Depending on your local host setup, you may be able to add the
 `--registry-mirror` options to the `DOCKER_OPTS` variable in
-`/etc/defaults/docker`.
+`/etc/default/docker`.
 
 ### Step 2: Run the local registry mirror