diff --git a/platforms/livecd-gnome-root/post.inc.sh b/platforms/livecd-gnome-root/post.inc.sh
index 0dd8e2c..e5f9b62 100644
--- a/platforms/livecd-gnome-root/post.inc.sh
+++ b/platforms/livecd-gnome-root/post.inc.sh
@@ -18,7 +18,7 @@ sed -i "s|id:3\(:initdefault.*\)|id:5\1|" $MOUNTDIR/etc/inittab
 
 # configure GDM for autologin
 #
-cat > $MOUNTDIR/etc/gdm/gdm.conf << _EOF
+cat > $MOUNTDIR/etc/gdm/custom.conf << _EOF
 [daemon]
 AutomaticLoginEnable=true
 AutomaticLogin=root