diff --git a/technic/solar_array_hv.lua b/technic/solar_array_hv.lua
index 89f5d1b..e159248 100644
--- a/technic/solar_array_hv.lua
+++ b/technic/solar_array_hv.lua
@@ -40,7 +40,7 @@ minetest.register_craft({
 	recipe = {
 		{'technic:solar_array_mv', 'technic:solar_array_mv','technic:solar_array_mv'},
 		{'technic:solar_array_mv', 'technic:hv_transformer','technic:solar_array_mv'},
-		{'', 'technic:hv_cable',''},
+		{'default:steel_ingot',    'technic:hv_cable',      'default:steel_ingot'},
 
 	}
 })
diff --git a/technic/solar_array_mv.lua b/technic/solar_array_mv.lua
index 73fe85a..de75301 100644
--- a/technic/solar_array_mv.lua
+++ b/technic/solar_array_mv.lua
@@ -41,7 +41,7 @@ minetest.register_craft({
 	recipe = {
 		{'technic:solar_array_lv', 'technic:solar_array_lv','technic:solar_array_lv'},
 		{'technic:solar_array_lv', 'technic:mv_transformer','technic:solar_array_lv'},
-		{'', 'technic:mv_cable',''},
+		{'default:steel_ingot',    'technic:mv_cable',      'default:steel_ingot'},
 
 	}
 })