diff --git a/install.sh b/install.sh
index 7319a85..5b472db 100644
--- a/install.sh
+++ b/install.sh
@@ -9,7 +9,7 @@ if ! id | grep -q '(sudo)'
 then
   su -c "/usr/sbin/usermod -a -G sudo ${USER}"
   # use sudo group without 
-  exec sg sudo "newgrp `id -gn`"
+  newgrp sudo
 fi