diff --git a/install.sh b/install.sh
index 41aecf7..3085800 100644
--- a/install.sh
+++ b/install.sh
@@ -474,7 +474,7 @@ EOF
 [ -n "$username" ] && echo "Setting user password for ${username}." && echo -e "${user_password}\n${user_password}" | arch-chroot /mnt passwd "$username" &>/dev/null
 
 ## Give wheel user sudo access.
-sed -i 's/# \(%wheel ALL=(ALL\(:ALL\|\)) ALL\)/\1/g' /mnt/etc/sudoers
+sed -i 's/# %wheel ALL=(ALL:ALL) ALL/%wheel ALL=(ALL:ALL) ALL/g' /mnt/etc/sudoers
 
 ## Enable services
 systemctl enable apparmor --root=/mnt