diff --git a/addons/mail/mail_thread_view.xml b/addons/mail/mail_thread_view.xml
index 7b5e7f299f6..de4b1fafe6f 100644
--- a/addons/mail/mail_thread_view.xml
+++ b/addons/mail/mail_thread_view.xml
@@ -73,7 +73,8 @@
                 ],
                 'view_mailbox': True,
                 'read_action': 'read',
-                'compose_as_todo': True
+                'compose_as_todo': True,
+                'show_compose_message': False
             }""/>
             <field name="help" type="html">
                 <p>