diff --git a/mesecons_extrawires/vertical.lua b/mesecons_extrawires/vertical.lua
index 64e6e80..c20415a 100644
--- a/mesecons_extrawires/vertical.lua
+++ b/mesecons_extrawires/vertical.lua
@@ -35,8 +35,8 @@ local brules =
 local vertical_updatepos = function (pos)
 	local node = minetest.env:get_node(pos)
 	if minetest.registered_nodes[node.name].is_vertical_conductor then
-		local node_above = minetest.env:get_node(addPosRule(pos, vrules[1]))
-		local node_below = minetest.env:get_node(addPosRule(pos, vrules[2]))
+		local node_above = minetest.env:get_node(mesecon:addPosRule(pos, vrules[1]))
+		local node_below = minetest.env:get_node(mesecon:addPosRule(pos, vrules[2]))
 		local namestate = minetest.registered_nodes[node.name].vertical_conductor_state
 
 		-- above and below: vertical mesecon