diff --git a/typescript/core/func/index.ts b/typescript/core/func/index.ts
index 381deb4d9b..7aca32af5c 100644
--- a/typescript/core/func/index.ts
+++ b/typescript/core/func/index.ts
@@ -4,6 +4,7 @@ import { _number } from "./number";
 import { _function } from "./function";
 import { _Date, _date } from "./date";
 
-export interface _func extends _array, _string, _number, _function, _date {
+export interface _func extends _array, _string, _number, _date {
     Date: _Date;
+    Func: _function;
 }