diff --git a/src/calibre/gui2/ui.py b/src/calibre/gui2/ui.py
index d992f9e1cc..4ad7f456d4 100644
--- a/src/calibre/gui2/ui.py
+++ b/src/calibre/gui2/ui.py
@@ -17,9 +17,7 @@ import re
 import sys
 import textwrap
 import time
-from collections import (
-    OrderedDict, deque
-)
+from collections import OrderedDict, deque
 from io import BytesIO
 from qt.core import (
     QAction, QApplication, QDialog, QFont, QIcon, QMenu, QSystemTrayIcon, Qt, QTimer,