diff --git a/zh-cn/application-dev/reference/apis/js-apis-distributedKVStore.md b/zh-cn/application-dev/reference/apis/js-apis-distributedKVStore.md
index 2b576197fb3aae36ced849059b735d7ac0593adb..a1bff027887c4d1124cf7152a8278523c6fc9c10 100644
--- a/zh-cn/application-dev/reference/apis/js-apis-distributedKVStore.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-distributedKVStore.md
@@ -4778,7 +4778,9 @@ off(event: 'syncComplete', syncCallback?: Callback<Array<[string, number]&
 
 取消订阅同步完成事件回调通知。
 
-**系统能力：** SystemCapability.DistributedDataManager.KVStore.
+**系统能力：** SystemCapability.DistributedDataManager.KVStore.Core
+
+**参数：**
 
 | 参数名       | 类型                                      | 必填 | 说明                                                       |
 | ------------ | --------------------------------------------- | ---- | ---------------------------------------------------------- |