diff --git a/sale.py b/sale.py
index 36ea4d8d1c..04946f1e36 100644
--- a/sale.py
+++ b/sale.py
@@ -668,7 +668,8 @@ class Sale(OSV):
         if sale.reference:
             return True
 
-        reference = sequence_obj.get(cursor, user, 'sale.sale')
+        reference = sequence_obj.get(cursor, user, 'sale.sale',
+                context=context)
         self.write(cursor, user, sale_id, {
             'reference': reference,
             }, context=context)