diff --git a/addons/calendar/views/calendar_views.xml b/addons/calendar/views/calendar_views.xml
index 7c9645c8908..be9f9066f65 100644
--- a/addons/calendar/views/calendar_views.xml
+++ b/addons/calendar/views/calendar_views.xml
@@ -317,7 +317,6 @@
                 <filter string="Archived" name="inactive" domain="[('active', '=', False)]"/>
                 <group expand="0" string="Group By">
                     <filter string="Responsible" name="responsible" domain="[]" context="{'group_by': 'user_id'}"/>
-                    <filter string="Availability" name="availability" domain="[]" context="{'group_by': 'show_as'}"/>
                 </group>
             </search>
         </field>