diff --git a/package/x11/xfree86/startxdm.sh b/package/x11/xfree86/startxdm.sh
index 301a2b1d7..f5c2d3a7b 100644
--- a/package/x11/xfree86/startxdm.sh
+++ b/package/x11/xfree86/startxdm.sh
@@ -4,15 +4,12 @@ XDM=/usr/X11/bin/xdm
 
 [ -e /etc/conf/xdm ] && . /etc/conf/xdm
 
-function check_dm() {
-	echo $XDM | grep -q $1
-}
-
-if [ "$1" = "-nodaemon" ] &&
-		! check_dm gdm && ! check_dm kdm && ! check_dm xdm
-then
-	shift
-fi
+[ "$1" = "-nodeamon" ] && case $XDM in
+	gdm*) ;;
+	kdm*) ;;
+	xdm*) ;;
+	*) shift ;;
+esac
 
 $XDM "$@"