diff --git a/package/firewall/files/firewall.config b/package/firewall/files/firewall.config
index 7682ace78d..7904cedb87 100644
--- a/package/firewall/files/firewall.config
+++ b/package/firewall/files/firewall.config
@@ -31,6 +31,7 @@ config rule
 	option proto		udp
 	option dest_port	68
 	option target		ACCEPT
+	option family	ipv4
 
 #Allow ping
 config rule