diff --git a/offlineimap/folder/LocalStatusSQLite.py b/offlineimap/folder/LocalStatusSQLite.py
index 62fb03f..2c8f170 100644
--- a/offlineimap/folder/LocalStatusSQLite.py
+++ b/offlineimap/folder/LocalStatusSQLite.py
@@ -25,7 +25,7 @@ import six
 from .Base import BaseFolder
 
 
-class DatabaseFileLock():
+class DatabaseFileLock:
     """Lock at database file level."""
 
     def __init__(self):