diff --git a/README.md b/README.md
index e8c317e..2f20d9f 100644
--- a/README.md
+++ b/README.md
@@ -64,7 +64,7 @@ for example, to update chroot, do :
 archbox sudo pacman -Syu
 ```
 ### Optional steps
-You may want to add this if you don't want to use Archbox without password (assuming the install prefix is ```/usr/local```) :
+You may want to add this if you don't want to use Archbox without password (assuming the install prefix is ```/usr/local``` and you're in group ```wheel```) :
 #### Sudo
 ```
 %wheel  ALL=(root) NOPASSWD: /usr/local/share/archbox/bin/archbox,/usr/local/share/archbox/bin/copyresolv,/usr/local/share/archbox/bin/remount_run,/usr/local/share/archbox/bin/archboxinit