diff --git a/npm/ng-packs/packages/theme-shared/extensions/src/lib/models/props.ts b/npm/ng-packs/packages/theme-shared/extensions/src/lib/models/props.ts
index 1e2fa9a0a0..ef37bee218 100644
--- a/npm/ng-packs/packages/theme-shared/extensions/src/lib/models/props.ts
+++ b/npm/ng-packs/packages/theme-shared/extensions/src/lib/models/props.ts
@@ -39,8 +39,8 @@ export abstract class Prop<R = any> {
   }
 }
 
-export type PropCallback<T, R = any> = (data?: Omit<PropData<T>, 'data'>) => R;
-export type PropPredicate<T> = (data?: Omit<PropData<T>, 'data'>) => boolean;
+export type PropCallback<T, R = any> = (data?: Omit<PropData<T>, 'data'>, auxData?: any) => R;
+export type PropPredicate<T> = (data?: Omit<PropData<T>, 'data'>, auxData?: any) => boolean;
 
 export abstract class PropsFactory<C extends Props<any>> {
   protected abstract _ctor: Type<C>;