diff --git a/src/app/project/game-model/GameModel.ts b/src/app/project/game-model/GameModel.ts
index 86a2003..3d75321 100644
--- a/src/app/project/game-model/GameModel.ts
+++ b/src/app/project/game-model/GameModel.ts
@@ -13,7 +13,6 @@ import {ProductTemplateCreator} from "./templates/productGamesystem/ProductTempl
 import {CharacterRelation} from "./characters/CharacterRelation";
 import {ItemGroup} from "./inventory/ItemGroup";
 import {AbstractItemGroup} from "./inventory/AbstractItemGroup";
-import {GameModelLoader} from "../../../../app/storage/loader/GameModelLoader";
 import {ConcreteItemGroup} from "./inventory/ConcreteItemGroup";
 import {Item} from "./inventory/Item";
 
diff --git a/src/app/project/game-model/inventory/ConcreteItemGroup.ts b/src/app/project/game-model/inventory/ConcreteItemGroup.ts
index 3dad098..478721c 100644
--- a/src/app/project/game-model/inventory/ConcreteItemGroup.ts
+++ b/src/app/project/game-model/inventory/ConcreteItemGroup.ts
@@ -7,6 +7,7 @@ export class ConcreteItemGroup extends ItemGroup {
 
   addItem(item: Item) {
     if(this.findItemByName(item.componentName) == undefined) {
+      item.addInheritedGroup(this);
       this.items.push(item);
     }
   }
diff --git a/src/app/project/game-model/inventory/Item.ts b/src/app/project/game-model/inventory/Item.ts
index 179aa18..f1d055f 100644
--- a/src/app/project/game-model/inventory/Item.ts
+++ b/src/app/project/game-model/inventory/Item.ts
@@ -4,4 +4,14 @@ import {ItemGroup} from "./ItemGroup";
 export class Item extends ModelComponent {
 
   inheritedGroups: ItemGroup[] = []
+
+  addInheritedGroup(itemgroup: ItemGroup) {
+    if(this.findItemgroupByName(itemgroup.componentName) == undefined) {
+      this.inheritedGroups.push(itemgroup);
+    }
+  }
+
+  findItemgroupByName(groupName: string) {
+    return this.inheritedGroups.find(group => group.componentName === groupName);
+  }
 }