diff --git a/install.sh b/install.sh
index 2c28259..97e1795 100755
--- a/install.sh
+++ b/install.sh
@@ -7,19 +7,18 @@
 if [ -z $userStr ]; then
 	echo "create openhab user and group"
 
-	useradd -r -s /sbin/nologin openhab
+	useradd -N -r -s /sbin/nologin openhab
 fi
 
 # gut user id
 uid=$(id openhab -u)
-gid=$(id openhab -g)
 
 # create directories
 mkdir -p data/conf
 mkdir -p data/userdata
 mkdir -p data/addons
 
-chown -R ${uid}:${gid} data
+chown -R ${uid} data
 chmod -R 770 data
 
 # replace uid and gid in config file