diff --git a/zh-cn/application-dev/reference/apis/js-apis-data-rdb.md b/zh-cn/application-dev/reference/apis/js-apis-data-rdb.md
index 98b8ce1371be0d84fabfd636becd59e2a5d85df1..a8b65036c45e22284d19ec594a7ff8876ead16a7 100644
--- a/zh-cn/application-dev/reference/apis/js-apis-data-rdb.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-data-rdb.md
@@ -780,7 +780,7 @@ distinct(): RdbPredicates
 **示例：**
 ```js
 let predicates = new data_rdb.RdbPredicates("EMPLOYEE")
-predicates.equalTo("NAME", "Rose").distinct("NAME")
+predicates.equalTo("NAME", "Rose").distinct()
 ```