diff --git a/sql-statements/sql-statement-split-region.md b/sql-statements/sql-statement-split-region.md
index df4c2e48de456..a56db9bcb6d73 100644
--- a/sql-statements/sql-statement-split-region.md
+++ b/sql-statements/sql-statement-split-region.md
@@ -231,7 +231,7 @@ For example, there is `idx4 (a,b)`, with column `a` of the varchar type and colu
 {{< copyable "sql" >}}
 
 ```sql
-SPLIT TABLE t1 INDEX idx4 ("a", "2000-01-01 00:00:01"), ("b", "2019-04-17 14:26:19"), ("c", "");
+SPLIT TABLE t1 INDEX idx4 BY ("a", "2000-01-01 00:00:01"), ("b", "2019-04-17 14:26:19"), ("c", "");
 ```
 
 This statement specifies 3 values to split 4 Regions. The range of each Region is as follows: