diff --git a/etc/rc b/etc/rc
index da4d524b3a24..3d95f8a925db 100644
--- a/etc/rc
+++ b/etc/rc
@@ -117,7 +117,7 @@ case ${harvest_interrupt} in
 	;;
 *)
 	if [ -w /dev/random ]; then
-		/sbin/sysctl -w kern.random.sys.harvest_interrupt=1 >/dev/null
+		/sbin/sysctl -w kern.random.sys.harvest.interrupt=1 >/dev/null
 		echo -n ' interrupts'
 	fi
 	;;
@@ -128,7 +128,7 @@ case ${harvest_ethernet} in
 	;;
 *)
 	if [ -w /dev/random ]; then
-		/sbin/sysctl -w kern.random.sys.harvest_ethernet=1 >/dev/null
+		/sbin/sysctl -w kern.random.sys.harvest.ethernet=1 >/dev/null
 		echo -n ' ethernet'
 	fi
 	;;
@@ -139,7 +139,7 @@ case ${harvest_p_to_p} in
 	;;
 *)
 	if [ -w /dev/random ]; then
-	/sbin/sysctl -w kern.random.sys.harvest_point_to_point=1 >/dev/null
+	/sbin/sysctl -w kern.random.sys.harvest.point_to_point=1 >/dev/null
 		echo -n ' point_to_point'
 	fi
 	;;