diff --git a/src/main/kotlin/com/enginemachiner/harmony/ItemGroup.kt b/src/main/kotlin/com/enginemachiner/harmony/ItemGroup.kt
index a8d5f40..4f0ee8b 100644
--- a/src/main/kotlin/com/enginemachiner/harmony/ItemGroup.kt
+++ b/src/main/kotlin/com/enginemachiner/harmony/ItemGroup.kt
@@ -20,6 +20,10 @@ object ModItemGroup : ItemGroupData {
 
     override val item = ItemGroupItem()
 
-    class ItemGroupItem : Item( Settings() )
+    class ItemGroupItem : Item( Settings() ) {
+
+        override fun className(): String { return "item_group" }
+
+    }
 
 }
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