diff --git a/addons/hr_holidays/models/hr_leave.py b/addons/hr_holidays/models/hr_leave.py
index 4e6bc0e2199..91bfdb82625 100644
--- a/addons/hr_holidays/models/hr_leave.py
+++ b/addons/hr_holidays/models/hr_leave.py
@@ -1025,9 +1025,9 @@ class HolidaysRequest(models.Model):
                 'res_id': holiday.id,
             }
             # Add the partner_id (if exist) as an attendee
-            if user and user.partner_id:
-                meeting_values['partner_ids'] = [
-                    (4, user.partner_id.id)]
+            partner_id = (user and user.partner_id) or (holiday.employee_id and holiday.employee_id.work_contact_id)
+            if partner_id:
+                meeting_values['partner_ids'] = [(4, partner_id.id)]
             result[user.id].append(meeting_values)
         return result