diff --git a/tidb-distributed-execution-framework.md b/tidb-distributed-execution-framework.md
index 4a048f301e272..f1c88d2a8d2b0 100644
--- a/tidb-distributed-execution-framework.md
+++ b/tidb-distributed-execution-framework.md
@@ -70,7 +70,7 @@ Currently, for TiDB Self-Hosted, the DXF supports the distributed execution of t
 ## Limitation
 
 - The DXF can only schedule the distributed execution of one `ADD INDEX` task at a time. If a new `ADD INDEX` task is submitted before the current `ADD INDEX` distributed task has finished, the new task is executed through a transaction.
-- Creating indexes on columns with the TIMESTAMP data type through the DXF is not supported, because it might lead to inconsistency between the index and the data.
+- Adding indexes on columns with the `TIMESTAMP` data type through the DXF is not supported, because it might lead to inconsistency between the index and the data.
 
 ## Prerequisites