diff --git a/sql/models.py b/sql/models.py
index c0420ded8e..5331601490 100755
--- a/sql/models.py
+++ b/sql/models.py
@@ -571,7 +571,9 @@ class DataMaskingColumns(models.Model):
     table_schema = models.CharField("字段所在库名", max_length=64)
     table_name = models.CharField("字段所在表名", max_length=64)
     column_name = models.CharField("字段名", max_length=64)
-    case_sensitive = models.BooleanField('字段区分大小写', choices=((False, '不区分'), (True, '区分')))
+    case_sensitive = models.BooleanField(
+        "字段区分大小写", choices=((False, "不区分"), (True, "区分"))
+    )
     column_comment = models.CharField("字段描述", max_length=1024, default="", blank=True)
     create_time = models.DateTimeField(auto_now_add=True)
     sys_time = models.DateTimeField(auto_now=True)