diff --git a/addons/account/account_move_line.py b/addons/account/account_move_line.py
index 71535bd7ce4..94d61a7ca46 100644
--- a/addons/account/account_move_line.py
+++ b/addons/account/account_move_line.py
@@ -27,6 +27,7 @@
 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 #
 ##############################################################################
+
 import time
 import netsvc
 from osv import fields, osv