diff --git a/fedora-live-kde-base.ks b/fedora-live-kde-base.ks
index e4a6232..7624f29 100644
--- a/fedora-live-kde-base.ks
+++ b/fedora-live-kde-base.ks
@@ -40,11 +40,11 @@ chmod a+x /home/liveuser/.xsession
 chown liveuser:liveuser /home/liveuser/.xsession
 
 # set up autologin for user liveuser
-sed -i 's/AutoUser=/AutoUser=liveuser/' /etc/sddm.conf
+sed -i 's/^AutoUser=.*/AutoUser=liveuser/' /etc/sddm.conf
 
 # set up user liveuser as default user and preselected user
-sed -i 's/LastUser=/LastUser=liveuser/' /etc/sddm.conf
-sed -i 's/LastSession=/LastSession=kde-plasma.desktop/' /etc/sddm.conf
+sed -i 's/^LastUser=.*/LastUser=liveuser/' /etc/sddm.conf
+sed -i 's/^LastSession=.*/LastSession=kde-plasma.desktop/' /etc/sddm.conf
 
 # add liveinst.desktop to favorites menu
 mkdir -p /home/liveuser/.kde/share/config/