diff --git a/pms/models/pms_reservation_line.py b/pms/models/pms_reservation_line.py
index 0b547b6cd..55d37ffef 100644
--- a/pms/models/pms_reservation_line.py
+++ b/pms/models/pms_reservation_line.py
@@ -117,7 +117,6 @@ class PmsReservationLine(models.Model):
         string="Sale Channel",
         help="Sale Channel through which reservation line was created",
         comodel_name="pms.sale.channel",
-        ondelete="restrict",
         check_pms_properties=True,
     )
     _sql_constraints = [