diff --git a/npm/ng-packs/packages/core/src/lib/models/common.ts b/npm/ng-packs/packages/core/src/lib/models/common.ts
index e239be2092..f7aa504c3d 100644
--- a/npm/ng-packs/packages/core/src/lib/models/common.ts
+++ b/npm/ng-packs/packages/core/src/lib/models/common.ts
@@ -66,8 +66,8 @@ export namespace ABP {
     invisible?: boolean;
   }
 
-  export interface Group {
-    key: string;
+  export interface Group<TKey = string> {
+    key: TKey;
     text: string;
   }
 
@@ -75,7 +75,7 @@ export namespace ABP {
     path?: string;
     layout?: eLayoutType;
     iconClass?: string;
-    group?: Group;
+    group?: Group<any>;
   }
 
   export interface Tab extends Nav {