diff --git a/pms_api_rest/datamodels/pms_service.py b/pms_api_rest/datamodels/pms_service.py
index 49ce06f78..ef0e66213 100644
--- a/pms_api_rest/datamodels/pms_service.py
+++ b/pms_api_rest/datamodels/pms_service.py
@@ -7,6 +7,7 @@ from odoo.addons.datamodel.fields import NestedModel
 class PmsServiceInfo(Datamodel):
     _name = "pms.service.info"
     id = fields.Integer(required=False, allow_none=True)
+    reservationId = fields.Integer(required=False, allow_none=True)
     name = fields.String(required=False, allow_none=True)
     productId = fields.Integer(required=False, allow_none=True)
     quantity = fields.Integer(required=False, allow_none=True)
diff --git a/pms_api_rest/services/pms_reservation_service.py b/pms_api_rest/services/pms_reservation_service.py
index 5dcfd8dc7..9a38c4926 100644
--- a/pms_api_rest/services/pms_reservation_service.py
+++ b/pms_api_rest/services/pms_reservation_service.py
@@ -397,6 +397,7 @@ class PmsReservationService(Component):
             result_services.append(
                 PmsServiceInfo(
                     id=service.id,
+                    reservationId=service.reservation_id,
                     name=service.name,
                     productId=service.product_id.id,
                     quantity=service.product_qty,