diff --git a/addons/event_sale/models/sale_order.py b/addons/event_sale/models/sale_order.py
index 7ca5360166c..7e83422d922 100644
--- a/addons/event_sale/models/sale_order.py
+++ b/addons/event_sale/models/sale_order.py
@@ -83,7 +83,9 @@ class SaleOrderLine(models.Model):
         company = self.event_id.company_id or self.env.user.company_id
         currency = company.currency_id or self.env.user.company_id.currency_id
         self.price_unit = currency._convert(
-            self.event_ticket_id.price, self.order_id.currency_id, self.order_id.company_id, self.order_id.date_order or fields.Date.today())
+            self.event_ticket_id.price, self.order_id.currency_id,
+            self.order_id.company_id or self.env.user.company_id,
+            self.order_id.date_order or fields.Date.today())
 
         # we call this to force update the default name
         self.product_id_change()