diff --git a/addons/website_event_sale/models/sale_order.py b/addons/website_event_sale/models/sale_order.py
index 5cb7c486408..165fe553e42 100644
--- a/addons/website_event_sale/models/sale_order.py
+++ b/addons/website_event_sale/models/sale_order.py
@@ -19,7 +19,9 @@ class sale_order(osv.Model):
             return self.pool.get('sale.order.line').search(cr, SUPERUSER_ID, domain, context=context)
 
     def _website_product_id_change(self, cr, uid, ids, order_id, product_id, qty=0, line_id=None, context=None):
-        values = super(sale_order,self)._website_product_id_change(cr, uid, ids, order_id, product_id, qty=qty, line_id=line_id, context=None)
+        values = super(sale_order, self)._website_product_id_change(
+            cr, uid, ids, order_id, product_id,
+            qty=qty, line_id=line_id, context=context)
 
         event_ticket_id = None
         if context.get("event_ticket_id"):