diff --git a/src/zmb-member/install-service.sh b/src/zmb-member/install-service.sh
index 5c30ca2..0cf017d 100644
--- a/src/zmb-member/install-service.sh
+++ b/src/zmb-member/install-service.sh
@@ -99,9 +99,9 @@ wbinfo -g
 mkdir /$LXC_SHAREFS_MOUNTPOINT/$ZMB_SHARE
 
 # originally 'domain users' was set, added variable for domain admins group, samba wiki recommends separate group e.g. 'unix admins'
-chown "$ZMB_ADMIN_USER" /$LXC_SHAREFS_MOUNTPOINT/$ZMB_SHARE
+chown "${ZMB_ADMIN_USER@L}" /$LXC_SHAREFS_MOUNTPOINT/$ZMB_SHARE
 
-setfacl -Rm u:$ZMB_ADMIN_USER:rwx,g::-,o::- /$LXC_SHAREFS_MOUNTPOINT/$ZMB_SHARE
-setfacl -Rdm u:$ZMB_ADMIN_USER:rwx,g::-,o::- /$LXC_SHAREFS_MOUNTPOINT/$ZMB_SHARE
+setfacl -Rm u:${ZMB_ADMIN_USER@L}:rwx,g::-,o::- /$LXC_SHAREFS_MOUNTPOINT/$ZMB_SHARE
+setfacl -Rdm u:${ZMB_ADMIN_USER@L}:rwx,g::-,o::- /$LXC_SHAREFS_MOUNTPOINT/$ZMB_SHARE
 
-systemctl restart smbd nmbd winbind wsdd
\ No newline at end of file
+systemctl restart smbd nmbd winbind wsdd