diff --git a/system-variables.md b/system-variables.md
index 07a5bb75cc51c..46cf033fcc43b 100644
--- a/system-variables.md
+++ b/system-variables.md
@@ -3251,7 +3251,7 @@ For a system upgraded to v5.0 from an earlier version, if you have not modified
- This variable is used to set the concurrency of the `hash join` algorithm.
- A value of `-1` means that the value of `tidb_executor_concurrency` will be used instead.
-### tidb_hash_join_version New v8.4.0
+### tidb_hash_join_version New in v8.4.0
> **Warning:**
>