diff --git a/addons/sale/models/sale.py b/addons/sale/models/sale.py
index 1d4abad0c7b..08e1c8d4b08 100644
--- a/addons/sale/models/sale.py
+++ b/addons/sale/models/sale.py
@@ -217,6 +217,8 @@ class SaleOrder(models.Model):
     @api.depends('pricelist_id', 'date_order', 'company_id')
     def _compute_currency_rate(self):
         for order in self:
+            if not order.company_id:
+                order.currency_rate = 1.0
             order.currency_rate = self.env['res.currency']._get_conversion_rate(order.company_id.currency_id, order.currency_id, order.company_id, order.date_order)
 
     def _compute_access_url(self):