diff --git a/packages/fineui/typescript/core/base.ts b/packages/fineui/typescript/core/base.ts
index 8b8b48732..a3fd73f37 100644
--- a/packages/fineui/typescript/core/base.ts
+++ b/packages/fineui/typescript/core/base.ts
@@ -304,7 +304,7 @@ export declare function deepDiff(object: any, other: any): string[];
 
 export declare function uniqueId(prefix?: string): string;
 
-export declare function result(object: any, key: string): any;
+export declare function result(object: any, key: string, defaultValue?: any): any;
 
 export declare function chain(value: any): any;