diff --git a/src/main/java/net/minestom/server/inventory/InventoryType.java b/src/main/java/net/minestom/server/inventory/InventoryType.java
index 5558f8189..9b77808c0 100644
--- a/src/main/java/net/minestom/server/inventory/InventoryType.java
+++ b/src/main/java/net/minestom/server/inventory/InventoryType.java
@@ -26,7 +26,7 @@ public enum InventoryType {
     LOOM(4),
     MERCHANT(3),
     SHULKER_BOX(27),
-    SMITHING(3),
+    SMITHING(4),
     SMOKER(3),
     CARTOGRAPHY(3),
     STONE_CUTTER(2);