diff --git a/docs/en/12-taos-sql/27-index.md b/docs/en/12-taos-sql/27-index.md
index 7586e4af76983e785b2c6b3f03870a8bcd6df4a3..93cd38f362289984d0dd4b7dc5d35a278d5234cf 100644
--- a/docs/en/12-taos-sql/27-index.md
+++ b/docs/en/12-taos-sql/27-index.md
@@ -41,7 +41,6 @@ DROP INDEX index_name;
 ## View Indices
 
 ````sql
-```sql
 SHOW INDEXES FROM tbl_name [FROM db_name];
 ````
 
diff --git a/docs/zh/12-taos-sql/27-index.md b/docs/zh/12-taos-sql/27-index.md
index aa84140296832f79a6498d0da2b5a8f500cd1e90..e86d2d8f367ed8a1d3159946c3f8e73d1c39b973 100644
--- a/docs/zh/12-taos-sql/27-index.md
+++ b/docs/zh/12-taos-sql/27-index.md
@@ -41,7 +41,6 @@ DROP INDEX index_name;
 ## 查看索引
 
 ````sql
-```sql
 SHOW INDEXES FROM tbl_name [FROM db_name];
 ````