diff --git a/sbin/dhclient/dhclient-script b/sbin/dhclient/dhclient-script
index b066400bd175..3439fd960773 100644
--- a/sbin/dhclient/dhclient-script
+++ b/sbin/dhclient/dhclient-script
@@ -320,7 +320,7 @@ MEDIUM)
 
 PREINIT)
 	delete_old_alias
-	$IFCONFIG $interface inet alias 0.0.0.0 netmask 0.0.0.0 broadcast 255.255.255.255 up
+	$IFCONFIG $interface inet alias 0.0.0.0 netmask 255.0.0.0 broadcast 255.255.255.255 up
 	;;
 
 ARPCHECK|ARPSEND)