diff --git a/models/res_partner_product_family.py b/models/res_partner_product_family.py
index 82ba79a9107ba3ed58e8c467bc60e89971974a2a..2a6771063c2f169d1011c899b171f57bd8ed02e8 100644
--- a/models/res_partner_product_family.py
+++ b/models/res_partner_product_family.py
@@ -2,6 +2,7 @@
 # License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl).
 
 from odoo import api, fields, models
+from odoo.exceptions import ValidationError
 
 
 class ResPartnerProductFamily(models.Model):