diff --git a/addons/event_sale/models/sale_order_template_line.py b/addons/event_sale/models/sale_order_template_line.py
index 0ee8dcf08c4..ee772b36d70 100644
--- a/addons/event_sale/models/sale_order_template_line.py
+++ b/addons/event_sale/models/sale_order_template_line.py
@@ -1,3 +1,5 @@
+# Part of Odoo. See LICENSE file for full copyright and licensing details.
+
 from odoo import fields, models
 
 class SaleOrderTemplateLine(models.Model):