diff --git a/offlineimap/globals.py b/offlineimap/globals.py
index e049988..2b3c488 100644
--- a/offlineimap/globals.py
+++ b/offlineimap/globals.py
@@ -7,6 +7,7 @@ from offlineimap.utils import const
 # Holds command-line options for OfflineIMAP.
 options = const.ConstProxy()
 
+
 def set_options(source):
     """Sets the source for options variable."""