diff --git a/res_partner_operating_unit/models/res_partner.py b/res_partner_operating_unit/models/res_partner.py
index b63570a680..bc887643ce 100644
--- a/res_partner_operating_unit/models/res_partner.py
+++ b/res_partner_operating_unit/models/res_partner.py
@@ -19,6 +19,5 @@ def _default_operating_unit(self):
         "partner_id",
         "operating_unit_id",
         "Operating Units",
-        required=True,
         default=lambda self: self._default_operating_unit(),
     )