diff --git a/en/application-dev/reference/apis/js-apis-update.md b/en/application-dev/reference/apis/js-apis-update.md
index 03361eb46101ffe44c62791dab66ac4f0ee0bbf3..a9a417c88513e0d39dd5f6fa68892574b7a62d0b 100644
--- a/en/application-dev/reference/apis/js-apis-update.md
+++ b/en/application-dev/reference/apis/js-apis-update.md
@@ -386,7 +386,7 @@ Sets the update policy. This API uses an asynchronous callback to return the res
 | Name  | Type                         | Mandatory| Description        |
 | -------- | ----------------------------- | ---- | ------------ |
 | policy   | [UpdatePolicy](#updatepolicy) | Yes  | Update policy to set.|
-| callback | AsyncCallback<number>       | Yes  | Callback used to return the result.|
+| callback | AsyncCallback\<number>       | Yes  | Callback used to return the result.|
 
 **Example**