diff --git a/docs/zh/operations/system-tables/data_type_families.md b/docs/zh/operations/system-tables/data_type_families.md
index db08ff0371b..000abfce65d 100644
--- a/docs/zh/operations/system-tables/data_type_families.md
+++ b/docs/zh/operations/system-tables/data_type_families.md
@@ -16,7 +16,7 @@ machine_translated_rev: 5decc73b5dc60054f19087d3690c4eb99446a6c3
 **示例**
 
 ``` sql
-SELECT * FROM system.data_type_families WHERE alias_to = 'String'
+SELECT * FROM system.data_type_families WHERE alias_to = 'String';
 ```
 
 ``` text