--- conf/upsmon.conf.sample.in.orig	2022-05-08 06:14:17.220611000 -0700
+++ conf/upsmon.conf.sample.in	2022-05-08 06:16:45.805777000 -0700
@@ -149,7 +149,7 @@
 # such as posting a message with 'logger' or 'wall' or 'mailx'. Do be careful
 # to plug the UPS back into the wall in a timely fashion.
 
-SHUTDOWNCMD "/sbin/shutdown -h +0"
+SHUTDOWNCMD "/sbin/poweroff"
 
 # --------------------------------------------------------------------------
 # NOTIFYCMD <command>