diff --git a/init.lua b/init.lua
index 8bb9002..324e451 100644
--- a/init.lua
+++ b/init.lua
@@ -450,6 +450,7 @@ if minetest.get_modpath("digilines") then
 			"mesecons_carts_digi_tjunction.png",
 			"mesecons_carts_digi_crossing.png",
 		},
+		_digistuff_channelcopier_fieldname = "channel",
 		after_place_node = function(pos)
 			local meta = minetest.get_meta(pos)
 			meta:set_string("formspec","field[channel;Channel;${channel}")
@@ -486,6 +487,7 @@ if minetest.get_modpath("digilines") then
 				"mesecons_carts_digi_tjunction.png",
 				"mesecons_carts_digi_crossing.png",
 			},
+			_digistuff_channelcopier_fieldname = "channel",
 			drop = "mesecons_carts:digilines_rail_idle",
 			after_place_node = function(pos)
 				local meta = minetest.get_meta(pos)
@@ -521,6 +523,7 @@ if minetest.get_modpath("digilines") then
 				"mesecons_carts_digi_tjunction.png",
 				"mesecons_carts_digi_crossing.png",
 			},
+			_digistuff_channelcopier_fieldname = "channel",
 			drop = "mesecons_carts:digilines_rail_idle",
 			after_place_node = function(pos)
 				local meta = minetest.get_meta(pos)