--- a/mod_firewall/definitions.lib.lua	Mon Feb 20 09:32:48 2017 +0000
+++ b/mod_firewall/definitions.lib.lua	Mon Feb 20 09:47:40 2017 +0000
@@ -128,6 +128,10 @@
 			end
 			update_list();
 		end;
+		add = function ()
+		end;
+		remove = function ()
+		end;
 		contains = function (self, item)
 			if self.hash_function then
 				item = self.hash_function(item);