diff --git a/livecd-tools.spec b/livecd-tools.spec
index 47c4925..d9e4702 100644
--- a/livecd-tools.spec
+++ b/livecd-tools.spec
@@ -5,7 +5,7 @@
 %define        lpadmin_gid 65032
 Name:          livecd-tools
 Version:       4.91.0
-Release:       1mamba
+Release:       2mamba
 Summary:       Live cd environment and utilities
 Group:         System/Tools
 Vendor:        openmamba
@@ -156,6 +156,12 @@ if [ $1 -eq 1 ]; then
    if [ -e /etc/sddm.conf ]; then
       sed -i "s|User=.*|User=liveuser|;s|Session=.*|Session=plasma|;s|MinimumUid=.*|MinimumUid=999|;s|Relogin=.*|Relogin=true|" \
 	     /etc/sddm.conf
+   else
+      cat > /etc/sddm.conf << _EOF
+[Autologin]
+User=liveuser
+Session=plasma
+_EOF
    fi
    # Configure GDM for autologin
    if [ -e /etc/gdm/custom.conf ]; then
@@ -198,6 +204,9 @@ fi
 %attr(-,liveuser,users) /home/liveuser/.kde4/share/config/*
 
 %changelog
+* Mon Jul 22 2019 Silvan Calarco <silvan.calarco@mambasoft.it> 4.91.0-2mamba
+- posttrans: creare /etc/sddm.conf if missing
+
 * Sun Jun 30 2019 Silvan Calarco <silvan.calarco@mambasoft.it> 4.91.0-1mamba
 - update to 4.91.0