diff --git a/autocrafter.lua b/autocrafter.lua
index 00869e1..8d9936e 100644
--- a/autocrafter.lua
+++ b/autocrafter.lua
@@ -190,7 +190,7 @@ local function update_meta(meta, enabled)
 	local state = enabled and "on" or "off"
 	meta:set_int("enabled", enabled and 1 or 0)
 	local list_backgrounds = ""
-	if minetest.get_modpath("i3") then
+	if minetest.get_modpath("i3") or minetest.get_modpath("mcl_formspec") then
 		list_backgrounds = "style_type[box;colors=#666]"
 		for i=0, 2 do
 			for j=0, 2 do
diff --git a/filter-injector.lua b/filter-injector.lua
index ac98a62..414e249 100644
--- a/filter-injector.lua
+++ b/filter-injector.lua
@@ -38,7 +38,7 @@ local function set_filter_formspec(data, meta)
 		end
 		local size = "10.2,11"
 		local list_backgrounds = ""
-		if minetest.get_modpath("i3") then
+		if minetest.get_modpath("i3") or minetest.get_modpath("mcl_formspec") then
 			list_backgrounds = "style_type[box;colors=#666]"
 			for i=0, 7 do
 				for j=0, 1 do
diff --git a/sorting_tubes.lua b/sorting_tubes.lua
index d35308f..39a8686 100644
--- a/sorting_tubes.lua
+++ b/sorting_tubes.lua
@@ -24,7 +24,7 @@ if pipeworks.enable_mese_tube then
 			)
 		end
 		local list_backgrounds = ""
-		if minetest.get_modpath("i3") then
+		if minetest.get_modpath("i3") or minetest.get_modpath("mcl_formspec") then
 			list_backgrounds = "style_type[box;colors=#666]"
 			for i=0, 5 do
 				for j=0, 5 do
diff --git a/trashcan.lua b/trashcan.lua
index 7c3d4e9..2795540 100644
--- a/trashcan.lua
+++ b/trashcan.lua
@@ -23,7 +23,7 @@ minetest.register_node("pipeworks:trashcan", {
 		local meta = minetest.get_meta(pos)
 		local size = "10.2,9"
 		local list_background = ""
-		if minetest.get_modpath("i3") then
+		if minetest.get_modpath("i3") or minetest.get_modpath("mcl_formspec") then
 			list_background = "style_type[box;colors=#666]box[4.5,2;1,1;]"
 		end
 		meta:set_string("formspec",
diff --git a/wielder.lua b/wielder.lua
index 360a7bd..c5b5ec9 100644
--- a/wielder.lua
+++ b/wielder.lua
@@ -8,7 +8,7 @@ end
 local function set_wielder_formspec(data, meta)
 	local size = "10.2,"..(7+data.wield_inv_height)
 	local list_background = ""
-	if minetest.get_modpath("i3") then
+	if minetest.get_modpath("i3") or minetest.get_modpath("mcl_formspec") then
 		list_background = "style_type[box;colors=#666]"
 		for i=0, data.wield_inv_height-1 do
 			for j=0, data.wield_inv_width-1 do