diff --git a/addons/point_of_sale/pos.py b/addons/point_of_sale/pos.py
index 5d4df5a5f10..d66cbbbf1fd 100644
--- a/addons/point_of_sale/pos.py
+++ b/addons/point_of_sale/pos.py
@@ -226,7 +226,6 @@ class pos_order(osv.osv):
         else:
             return False
     def copy(self, cr, uid, id, default=None, context={}):
-        
         if not default:
             default = {}
         default.update({
@@ -236,6 +235,7 @@ class pos_order(osv.osv):
             'invoice_id': False,
             'account_move': False,
             'picking_id': False,
+            'statement_ids':False,
             'nb_print': 0,
             'pickings': []
         })