diff --git a/recipes.lua b/recipes.lua
index f2968ab..243ce10 100644
--- a/recipes.lua
+++ b/recipes.lua
@@ -921,7 +921,7 @@ return {
             ['minecraft:chest;0'] = 1,
         },
         shape    = {
-            'minecraft:diamond;0', 'opencomputers:material;8', 'minecraft:diamond;0',
+            'minecraft:diamond;0', 'opencomputers:material;9', 'minecraft:diamond;0',
             'minecraft:iron_bars;0', 'minecraft:chest;0', 'minecraft:iron_bars;0',
             'minecraft:diamond;0', 'opencomputers:material;4', 'minecraft:diamond;0',
         }