diff --git a/lib/policy-funcs b/lib/policy-funcs
index e0473a7..5bc3d7e 100644
--- a/lib/policy-funcs
+++ b/lib/policy-funcs
@@ -9,6 +9,7 @@ CheckPolicy() {
 	local PMS
 	PMS="gnome-power-manager kpowersave xfce4-power-manager"
 	PMS="$PMS guidance-power-manager.py dalston-power-applet"
+	PMS="$PMS mate-settings-daemon"
 	if pidof -x $PMS > /dev/null ||
 	   (pidof dcopserver > /dev/null && test -x /usr/bin/dcop && /usr/bin/dcop kded kded loadedModules | grep -q klaptopdaemon) ||
 	   PowerDevilRunning ; then