diff --git a/addons/point_of_sale/models/res_partner.py b/addons/point_of_sale/models/res_partner.py
index 3ecc99f8f4a..bcfe3012259 100644
--- a/addons/point_of_sale/models/res_partner.py
+++ b/addons/point_of_sale/models/res_partner.py
@@ -40,7 +40,7 @@ class ResPartner(models.Model):
         return partner_id
 
     def unlink(self):
-        running_sessions = self.env['pos.session'].search([('state', '!=', 'closed')])
+        running_sessions = self.env['pos.session'].sudo().search([('state', '!=', 'closed')])
         if running_sessions:
             raise UserError(
                 _("You cannot delete contacts while there are active PoS sessions. Close the session(s) %s first.")