diff --git a/tubelib/command.lua b/tubelib/command.lua
index 6e226bf..4380193 100644
--- a/tubelib/command.lua
+++ b/tubelib/command.lua
@@ -139,7 +139,6 @@ local function get_dest_node(pos, side)
 	local dir = side_to_dir(side, node.param2)
 	local spos, sdir = Tube:get_connected_node_pos(pos, dir)
 	if not (spos and sdir) then return end
-	if vector.equals(pos, spos) then return end
 	_,node = Tube:get_node(spos)
 	local out_side = dir_to_side(tubelib2.Turn180Deg[sdir], node.param2)
 	return spos, out_side, Name2Name[node.name] or node.name
diff --git a/tubelib_addons1/detector.lua b/tubelib_addons1/detector.lua
index f7c5ad9..e657344 100644
--- a/tubelib_addons1/detector.lua
+++ b/tubelib_addons1/detector.lua
@@ -9,7 +9,7 @@
 	See LICENSE.txt for more information
 
 	detector.lua:
-	
+
 ]]--
 
 
@@ -75,11 +75,11 @@ minetest.register_node("tubelib_addons1:detector", {
 			"button_exit[2,2;3,1;exit;Save]")
 		end
 	end,
-	
+
 	after_dig_node = function(pos, oldnode, oldmetadata, digger)
 		tubelib.remove_node(pos)
 	end,
-	
+
 	on_rotate = screwdriver.disallow,
 	paramtype = "light",
 	sunlight_propagates = true,
@@ -108,7 +108,7 @@ minetest.register_node("tubelib_addons1:detector_active", {
 	after_dig_node = function(pos, oldnode, oldmetadata, digger)
 		tubelib.remove_node(pos)
 	end,
-	
+
 	paramtype = "light",
 	light_source = 2,
 	sunlight_propagates = true,
@@ -131,6 +131,7 @@ minetest.register_craft({
 
 tubelib.register_node("tubelib_addons1:detector", {"tubelib_addons1:detector_active"}, {
 	on_push_item = function(pos, side, item)
+		if side ~= "L" then return false end
 		local player_name = minetest.get_meta(pos):get_string("player_name")
 		if tubelib.push_items(pos, "R", item, player_name) then
 			switch_on(pos)
@@ -139,5 +140,5 @@ tubelib.register_node("tubelib_addons1:detector", {"tubelib_addons1:detector_act
 		return false
 	end,
 	is_pusher = true,  -- is a pulling/pushing node
-})	
+})