diff --git a/api/@internal/component/ets/web.d.ts b/api/@internal/component/ets/web.d.ts
index 0d3bc0180c16a2c7a9f43c4d3b240dc987ed5417..3948a50f229fd5187abdb3ad0a131686c4118582 100755
--- a/api/@internal/component/ets/web.d.ts
+++ b/api/@internal/component/ets/web.d.ts
@@ -720,7 +720,7 @@ declare class WebAttribute extends CommonMethod<WebAttribute> {
    * @param callback The triggered function when the web page wants to confirm navigation from JavaScript onbeforeunload.
    * @since 8
    */
-  onBeforeUnload(callback: (event?: { message: string; result: JsResult }) => boolean): WebAttribute;
+  onBeforeUnload(callback: (event?: { url: string; message: string; result: JsResult }) => boolean): WebAttribute;
 
   /**
    * Triggered when the web page wants to display a JavaScript confirm() dialog.