diff --git a/README.md b/README.md
index cdbca49..84cbe79 100644
--- a/README.md
+++ b/README.md
@@ -33,11 +33,14 @@ helper to run a Vagrant virtual machine in the right place.
 ```
 
 ### Run a container
+
 ```shell
 cd /path/to/dev/env
-./ynh-dev run ynh.local virtualbox testing
+./ynh-dev run ynh.local testing
 ```
 
+The `run` command takes 2 arguments: domain and YunoHost version.
+
 You'll be automatically logged in the VM through ssh.
 
 You probably wan't to run the postinstall now: