diff --git a/src/calibre/gui2/actions/choose_library.py b/src/calibre/gui2/actions/choose_library.py
index 10985d4766..7578867082 100644
--- a/src/calibre/gui2/actions/choose_library.py
+++ b/src/calibre/gui2/actions/choose_library.py
@@ -200,6 +200,7 @@ class BackupStatus(QDialog):  # {{{
 
 # }}}
 
+
 current_change_library_action_pi = None