diff --git a/mesecons_microcontroller/init.lua b/mesecons_microcontroller/init.lua
index b241713..ba5bbf8 100644
--- a/mesecons_microcontroller/init.lua
+++ b/mesecons_microcontroller/init.lua
@@ -147,9 +147,9 @@ end
 minetest.register_craft({
 	output = 'craft "mesecons_microcontroller:microcontroller0000" 2',
 	recipe = {
-		{'mesecons_materials:silicon', 'mesecons_materials:silicon', 'group:mesecon_conductor_craftable'},
-		{'mesecons_materials:silicon', 'mesecons_materials:silicon', 'group:mesecon_conductor_craftable'},
-		{'group:mesecon_conductor_craftable', 'group:mesecon_conductor_craftable', ''},
+		{'', 'group:mesecon_conductor_craftable', 'group:mesecon_conductor_craftable'},
+		{'group:mesecon_conductor_craftable', 'mesecons_materials:silicon', 'mesecons_materials:silicon'},
+		{'group:mesecon_conductor_craftable', 'mesecons_materials:silicon', 'mesecons_materials:silicon'}
 	}
 })