diff --git a/offlineimap/emailutil.py b/offlineimap/emailutil.py
index 5387919..53534ba 100644
--- a/offlineimap/emailutil.py
+++ b/offlineimap/emailutil.py
@@ -18,6 +18,7 @@
 import email
 from email.parser import Parser as MailParser
 
+
 def get_message_date(content, header='Date'):
     """Parses mail and returns resulting timestamp.