diff --git a/README.md b/README.md
index 3ebd5aa5c4e110bd934291eb9010bb97ebdc9c31..946c111ea22a79c904c1296d0c69a6daf2cccd3d 100644
--- a/README.md
+++ b/README.md
@@ -92,7 +92,7 @@ adduser $new_user_name
 
 The user can be added to a group with.
 ```sh
-usermod -aG $grou_name $new_user_name
+usermod -aG $group_name $new_user_name
 ```
 
 **Changing the ownership of a file or directory**