diff --git a/livecd-tools.spec b/livecd-tools.spec
index 1843ca8..e8f0e58 100644
--- a/livecd-tools.spec
+++ b/livecd-tools.spec
@@ -5,7 +5,7 @@
 %define        lpadmin_gid 65032
 Name:          livecd-tools
 Version:       5.4
-Release:       1mamba
+Release:       2mamba
 Summary:       Live cd environment and utilities
 Group:         System/Tools
 Vendor:        openmamba
@@ -105,7 +105,7 @@ if [ $1 -eq 1 ]; then
 #      /sbin/eject_cd.sh 2>&1 >/dev/null' /etc/init.d/halt
 #   sed -i -e '/reboot .*/i \
 #      /sbin/eject_cd.sh 2>&1 >/dev/null' /etc/init.d/reboot
-   chown -R liveuser.users /home/liveuser
+   chown -R liveuser:users /home/liveuser
 fi
 :
 
@@ -202,6 +202,9 @@ fi
 %attr(-,liveuser,users) %dir /home/liveuser
 
 %changelog
+* Sun Jul 30 2023 Silvan Calarco <silvan.calarco@mambasoft.it> 5.4-2mamba
+- use : instead of . in chown post command
+
 * Wed Mar 22 2023 Silvan Calarco <silvan.calarco@mambasoft.it> 5.4-1mamba
 - update to 5.4