diff --git a/README.md b/README.md
index eb79d80..e7d97ad 100644
--- a/README.md
+++ b/README.md
@@ -25,4 +25,4 @@ Build container by running:
 
 Use the new image to generate a docker-compose file from a running container:
 
-     docker run -v /var/run/docker.sock:/var/run/docker.sock red5d/docker-autocompose $container-id
+     docker run -v /var/run/docker.sock:/var/run/docker.sock red5d/docker-autocompose <container-id>