diff --git a/addons/calendar/views/calendar_views.xml b/addons/calendar/views/calendar_views.xml
index afb3bf77e7f..b4c1ccb662e 100644
--- a/addons/calendar/views/calendar_views.xml
+++ b/addons/calendar/views/calendar_views.xml
@@ -122,8 +122,8 @@
                                     <field name="stop" attrs="{'invisible': True}"/>
                                     <field name="id" attrs="{'invisible': True}"/>
 
-                                    <field name="start_date" string="Starting at" attrs="{'required': [('allday','=',True)], 'invisible': [('allday','=',False)], 'readonly': [('id', '!=', False), ('recurrency','=',True)]}"/>
-                                    <field name="stop_date" string="Ending at" attrs="{'required': [('allday','=',True)],'invisible': [('allday','=',False)], 'readonly': [('id', '!=', False), ('recurrency','=',True)]}"/>
+                                    <field name="start_date" string="Starting at" attrs="{'required': [('allday','=',True)], 'invisible': [('allday','=',False)], 'readonly': [('id', '!=', False), ('recurrency','=',True)]}" force_save="1"/>
+                                    <field name="stop_date" string="Ending at" attrs="{'required': [('allday','=',True)],'invisible': [('allday','=',False)], 'readonly': [('id', '!=', False), ('recurrency','=',True)]}" force_save="1"/>
 
                                     <field name="start_datetime" string="Starting at" attrs="{'required': [('allday','=',False)], 'invisible': [('allday','=',True)], 'readonly': [('id', '!=', False), ('recurrency','=',True)]}"/>
                                     <field name="stop_datetime" invisible="1"/>
@@ -132,7 +132,7 @@
                                         <field name="duration" widget="float_time" string="Duration" class="oe_inline" attrs="{'readonly': [('id', '!=', False), ('recurrency','=',True)]}"/>
                                         <span> hours</span>
                                     </div>
-                                    <field name="allday" attrs="{'readonly': [('id', '!=', False), ('recurrency','=',True)]}"/>
+                                    <field name="allday" attrs="{'readonly': [('id', '!=', False), ('recurrency','=',True)]}" force_save="1"/>
                                 </group>
                                 <group>
                                     <field name="categ_ids" widget="many2many_tags" options="