diff --git a/odex25_fleet/odex_fleet/i18n/ar_001.po b/odex25_fleet/odex_fleet/i18n/ar_001.po
index 5c8cf8c74..cf11256af 100644
--- a/odex25_fleet/odex_fleet/i18n/ar_001.po
+++ b/odex25_fleet/odex_fleet/i18n/ar_001.po
@@ -2686,7 +2686,7 @@ msgstr "متسلسل"
 #: model:ir.model.fields,field_description:odex_fleet.field_vehicle_delegation__serial_number
 #: model:ir.model.fields,field_description:odex_fleet.field_vehicle_infraction__serial_number
 msgid "Serial Number"
-msgstr "الرقم المسلسل"
+msgstr "الرقم التسلسلي"
 
 #. module: odex_fleet
 #: code:addons/odex_fleet/models/fleet_service_type.py:0
diff --git a/odex25_fleet/odex_fleet/models/request_vehicle_authorization.py b/odex25_fleet/odex_fleet/models/request_vehicle_authorization.py
index 668d72f78..5bf0bf86e 100644
--- a/odex25_fleet/odex_fleet/models/request_vehicle_authorization.py
+++ b/odex25_fleet/odex_fleet/models/request_vehicle_authorization.py
@@ -30,7 +30,7 @@ class RequestVehicleDelegation(models.Model):
                                     required=True)
     license_start = fields.Date(string="License Start", related='employee_id.license_start', readonly=False,
                                 required=True)
-    vehicle_id = fields.Many2one('fleet.vehicle', string="Vehicle", tracking=True,
+    vehicle_id = fields.Many2one('fleet.vehicle', string="Vehicle", tracking=True, required=True,
                                  domain=lambda self: [('id', 'not in', self._get_delegated_vehicle_ids())])
 
     license_plate = fields.Char(required=True, related='vehicle_id.license_plate', store=True, tracking=True, )