diff --git a/README.md b/README.md
index 34ef8fb..a5858ed 100644
--- a/README.md
+++ b/README.md
@@ -149,7 +149,14 @@ Finally, start your containers with `VIRTUAL_HOST` environment variables.
     $ docker run -e VIRTUAL_HOST=foo.bar.com  ...
 ### SSL Support using letsencrypt
 
-[letsencrypt-nginx-proxy-companion](https://github.com/JrCs/docker-letsencrypt-nginx-proxy-companion) is a lightweight companion container for the nginx-proxy. It allow the creation/renewal of Let's Encrypt certificates automatically. 
+Just set `ENABLE_ACME` to `true`:
+
+```
+docker run -e VIRTUAL_HOST=foo.bar.com  -e ENABLE_ACME=true ...
+
+```
+
+It will generate the certs from letsencrypt and renew the cert in future automatically.
 
 ### SSL Support