diff --git a/README.md b/README.md
index 286ade4..60d3257 100644
--- a/README.md
+++ b/README.md
@@ -27,8 +27,11 @@ you can use docker / docker-compose with sudo but you can add your user to ```do
 ```bash
 sudo groupadd docker
 sudo usermod -aG docker $USER
+newgrp docker
 ```
 
+is likely you need rebot for save permission changes.
+
 also important thing is configure systemctl for running docker on boot with systemd:
 
 ```bash