diff --git a/mods/mesecons/mesecons_microcontroller/init.lua b/mods/mesecons/mesecons_microcontroller/init.lua
index 6778a10b..66265b92 100755
--- a/mods/mesecons/mesecons_microcontroller/init.lua
+++ b/mods/mesecons/mesecons_microcontroller/init.lua
@@ -145,8 +145,8 @@ 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', ''},
+		{'mesecons_materials:silicon', 'mesecons_materials:silicon', ''},
 		{'group:mesecon_conductor_craftable', 'group:mesecon_conductor_craftable', ''},
 	}
 })