diff --git a/golem_activity_registration_payment/__manifest__.py b/golem_activity_registration_payment/__manifest__.py
index 238fdc8..10a4df5 100644
--- a/golem_activity_registration_payment/__manifest__.py
+++ b/golem_activity_registration_payment/__manifest__.py
@@ -19,7 +19,7 @@
     'name': 'GOLEM Activity Member Registration Payments',
     'summary': 'GOLEM Activities Member Registration Payments',
     'description': 'GOLEM Activities Member Registration Payments',
-    'version': '10.0.0.3.5',
+    'version': '10.0.0.3.6',
     'category': 'GOLEM',
     'author': 'Fabien Bourgeois',
     'license': 'AGPL-3',
diff --git a/golem_payment/models/golem_payment.py b/golem_payment/models/golem_payment.py
index 2d5deb4..2e68705 100644
--- a/golem_payment/models/golem_payment.py
+++ b/golem_payment/models/golem_payment.py
@@ -37,7 +37,7 @@ class GolemPaymentScheduleDay(models.Model):
 
     day = fields.Date(required=True)
     schedule_id = fields.Many2one('golem.payment.schedule', required=True,
-                                  auto_join=True)
+                                  auto_join=True, ondelete='cascade')
 
 
 class GolemPaymentSchedule(models.Model):
diff --git a/golem_payment/views/golem_payment_views.xml b/golem_payment/views/golem_payment_views.xml
index 9d13ea8..f4ecb05 100644
--- a/golem_payment/views/golem_payment_views.xml
+++ b/golem_payment/views/golem_payment_views.xml
@@ -30,10 +30,10 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
             <group>
             <field name="name" />
             <field name="season_id" options="{'no_open': True, 'no_create': True}" />
-            <field name="day_ids">
+            <field name="day_ids" context="{'default_schedule_id': active_id}">
               <tree editable="bottom">
                 <field name="day" />
-                <field name="schedule_id" invisible="1" />
+                <field name="schedule_id" invisible="1" required="0" />
               </tree>
             </field>
             <field name="occurences" />