diff --git a/views/calendar.xml b/views/calendar.xml
index 891a0b211350fc267ec0855094c83bcf504835d8..823cbc3a3ba4c2ec990e008a79248e9c36f215ec 100644
--- a/views/calendar.xml
+++ b/views/calendar.xml
@@ -190,6 +190,7 @@
                 <calendar position="attributes">
                     <attribute name="quick_add">False</attribute>
                     <attribute name="readonly_form_view_id">cgscop_calendar.view_calendar_cooperative_form_inherited</attribute>
+                    <attribute name="ur_sidebar_filter">True</attribute>
                 </calendar>
                 <field name="partner_ids" position="before">
                     <field name="ur_id" invisible="1"/>