diff --git a/addons/sale/models/sale.py b/addons/sale/models/sale.py
index f6539a34173..6f7e8283ccd 100644
--- a/addons/sale/models/sale.py
+++ b/addons/sale/models/sale.py
@@ -667,10 +667,11 @@ class SaleOrder(models.Model):
 
     @api.multi
     def action_done(self):
-        tx = self.sudo().transaction_ids.get_last_transaction()
-        if tx and tx.state == 'pending' and tx.acquirer_id.provider == 'transfer':
-            tx._set_transaction_done()
-            tx.write({'is_processed': True})
+        for order in self:
+            tx = order.sudo().transaction_ids.get_last_transaction()
+            if tx and tx.state == 'pending' and tx.acquirer_id.provider == 'transfer':
+                tx._set_transaction_done()
+                tx.write({'is_processed': True})
         return self.write({'state': 'done'})
 
     @api.multi