diff --git a/docker-trusted-registry/reference/install.md b/docker-trusted-registry/reference/install.md
index d3b5f09199..5c03b31a9d 100644
--- a/docker-trusted-registry/reference/install.md
+++ b/docker-trusted-registry/reference/install.md
@@ -9,6 +9,7 @@ menu:
 title: install
 ---
 
+
 # docker/dtr install
 
 Install Docker Trusted Registry on this Docker Engine
diff --git a/docker-trusted-registry/reference/join.md b/docker-trusted-registry/reference/join.md
index 503e7e168f..9afd83f809 100644
--- a/docker-trusted-registry/reference/join.md
+++ b/docker-trusted-registry/reference/join.md
@@ -13,6 +13,14 @@ title: join
 
 Add a new replica to an existing DTR cluster
 
+## Usage
+
+```bash
+$ docker run -it --rm docker/dtr \
+   join [command options]
+```
+
+
 ## Description
 
 This command installs DTR on the Docker Engine that runs the command,