diff --git a/README.md b/README.md
index 73264a8..afe50bb 100644
--- a/README.md
+++ b/README.md
@@ -417,10 +417,10 @@ lspci -v
 apt install sudo
 ```
 
-ad user to sudo group:
+**add user to sudo group:**
 
 ```bash
-sudo usermod -aG sudo mf
+sudo usermod -aG sudo ${USERNAME}
 ```
 
 ### rsync