diff --git a/api/@ohos.web.webview.d.ts b/api/@ohos.web.webview.d.ts
index 34aa1f5ccc0965f7792e101970ac34dab7edfe56..da3eb84e0e8bf4f05d22ed5c7eda659bfda63e4f 100644
--- a/api/@ohos.web.webview.d.ts
+++ b/api/@ohos.web.webview.d.ts
@@ -6628,6 +6628,7 @@ declare namespace webview {
      * Gets the loading progress for the current page.
      *
      * @returns { number } The loading progress for the current page.
+     * @throws { BusinessError } 801 - Capability not supported.
      * @syscap SystemCapability.Web.Webview.Core
      * @since 20
      */