diff --git a/docs/en/07-develop/03-insert-data/04-opentsdb-json.mdx b/docs/en/07-develop/03-insert-data/04-opentsdb-json.mdx
index be8f521cf2..0a92e3b916 100644
--- a/docs/en/07-develop/03-insert-data/04-opentsdb-json.mdx
+++ b/docs/en/07-develop/03-insert-data/04-opentsdb-json.mdx
@@ -49,7 +49,7 @@ Please refer to [OpenTSDB HTTP API](http://opentsdb.net/docs/build/html/api_http
 - In JSON protocol, strings will be converted to NCHAR type and numeric values will be converted to double type.
 - Only data in array format is accepted and so an array must be used even if there is only one row.
 - The defult child table name is generated by rules.You can configure smlChildTableName in taos.cfg to specify child table names, for example, `smlChildTableName=tname`. You can insert `"tags": { "host": "web02","dc": "lga","tname":"cpu1"}` and the cpu1 table will be automatically created. Note that if multiple rows have the same tname but different tag_set values, the tag_set of the first row is used to create the table and the others are ignored.
-  :::
+:::
 
 ## Examples