diff --git a/tubelib/command.lua b/tubelib/command.lua
index bfadf1d..eb72ab4 100644
--- a/tubelib/command.lua
+++ b/tubelib/command.lua
@@ -340,9 +340,15 @@ function tubelib.register_node(name, add_names, node_definition)
 	end
 	if node_definition.on_pull_item or node_definition.on_push_item or
 			node_definition.is_pusher then
-		Tube:add_secondary_node_names({name}, node_definition.valid_sides)
-		Tube:add_secondary_node_names(add_names, node_definition.valid_sides)
+		Tube:add_secondary_node_names({name})
+		Tube:add_secondary_node_names(add_names)
 
+		if node_definition.valid_sides then
+			Tube:set_valid_sides(name, node_definition.valid_sides)
+			for _,n in ipairs(add_names) do
+				Tube:set_valid_sides(n, node_definition.valid_sides)
+			end
+		end
 		tubelib.KnownNodes[name] = true
 		for _,n in ipairs(add_names) do
 			tubelib.KnownNodes[n] = true
diff --git a/tubelib_addons3/teleporter.lua b/tubelib_addons3/teleporter.lua
index ccaa661..8d5220a 100644
--- a/tubelib_addons3/teleporter.lua
+++ b/tubelib_addons3/teleporter.lua
@@ -75,4 +75,5 @@ minetest.register_craft({
 	},
 })
 
-Tube:add_secondary_node_names({"tubelib_addons3:teleporter"}, {B=false, R=true, F=false, L=false, D=false, U=false})
+Tube:add_secondary_node_names({"tubelib_addons3:teleporter"})
+Tube:set_valid_sides("tubelib_addons3:teleporter", {"R"})