diff --git a/addons/calendar/data/mail_template_data.xml b/addons/calendar/data/mail_template_data.xml
index 8c6a963069d..358787452ea 100644
--- a/addons/calendar/data/mail_template_data.xml
+++ b/addons/calendar/data/mail_template_data.xml
@@ -360,7 +360,7 @@
             <field name="model_id" ref="calendar.model_calendar_event"/>
             <field name="subject">{{object.name}}: Event update</field>
             <field name="email_from">{{ (object.user_id.email_formatted or user.email_formatted or '') }}</field>
-            <field name="email_to">{{('' if object.partner_id.email and object.partner_id.email == object.email else object.email) }}</field>
+            <field name="email_to"></field>
             <field name="lang">{{ object.partner_id.lang }}</field>
             <field name="body_html" type="html">
 <div>