diff --git a/docs/en/docs/advanced/variables.md b/docs/en/docs/advanced/variables.md
index 0ac94b7087..59ec3992cf 100644
--- a/docs/en/docs/advanced/variables.md
+++ b/docs/en/docs/advanced/variables.md
@@ -639,7 +639,7 @@ Note that the comment must start with /*+ and can only follow the SELECT.
 
     <version since="1.2.0"></version>
 
-    Use a fixed replica to query. If use_fix_replica is 1, the smallest one is used, if use_fix_replica is 2, the second smallest one is used, and so on. The default value is -1, which means it is not enabled.
+    Use a fixed replica to query. replica starts with 0 and if use_fix_replica is 0, the smallest is used, if use_fix_replica is 1, the second smallest is used, and so on. The default value is -1, indicating that the function is disabled.
 
 * `dry_run_query`
 
diff --git a/docs/zh-CN/docs/advanced/variables.md b/docs/zh-CN/docs/advanced/variables.md
index bee0717993..1719607041 100644
--- a/docs/zh-CN/docs/advanced/variables.md
+++ b/docs/zh-CN/docs/advanced/variables.md
@@ -627,7 +627,7 @@ try (Connection conn = DriverManager.getConnection("jdbc:mysql://127.0.0.1:9030/
 
     <version since="1.2.0"></version>
 
-    使用固定的replica进行查询，该值表示固定使用第几小的replica，默认为-1表示不启用。
+    使用固定replica进行查询。replica从0开始，如果use_fix_replica为0，则使用最小的，如果use_fix_replica为1，则使用第二个最小的，依此类推。默认值为-1，表示未启用。
 
 * `dry_run_query`