diff --git a/api/@ohos.web.webview.d.ts b/api/@ohos.web.webview.d.ts
index 34aa1f5ccc0965f7792e101970ac34dab7edfe56..0779a3ee1e3685cc86935344046578feb59d1ad4 100644
--- a/api/@ohos.web.webview.d.ts
+++ b/api/@ohos.web.webview.d.ts
@@ -6523,6 +6523,7 @@ declare namespace webview {
      * The current scroll offset of the web page (excluding over-scroll offset).
      *
      * @returns { ScrollOffset } The current scroll offset of the web page (excluding over-scroll offset).
+     * @throws { BusinessError } 801 - Capability not supported.
      * @syscap SystemCapability.Web.Webview.Core
      * @since 20
      */