diff --git a/src/etc/etc.amd64/sysctl.conf b/src/etc/etc.amd64/sysctl.conf
index b1b64952..73c255d3 100644
--- a/src/etc/etc.amd64/sysctl.conf
+++ b/src/etc/etc.amd64/sysctl.conf
@@ -1,3 +1,4 @@
 #machdep.allowaperture=2	# See xf86(4)
 #machdep.kbdreset=1		# permit console CTRL-ALT-DEL to do a nice halt
 #machdep.lidaction=0		# 1=suspend, 2=hibernate laptop upon lid closing
+#machdep.pwraction=1		# ACPI power button action: 0=none, 2=suspend