diff --git a/README.md b/README.md
index af237cd..7e7fcb4 100644
--- a/README.md
+++ b/README.md
@@ -41,7 +41,7 @@ pw useradd -n _portzap \
            -c "portzap utility user" \
            -m \
            -s /sbin/nologin
-pw groupmod -g _portzap -m <user>
+pw groupmod -n _portzap -m <user>
 ```
 
 ## Sources