diff --git a/addons/mail/views/mail_blacklist_views.xml b/addons/mail/views/mail_blacklist_views.xml
index 725af63ab3f..6e0664c54ea 100644
--- a/addons/mail/views/mail_blacklist_views.xml
+++ b/addons/mail/views/mail_blacklist_views.xml
@@ -15,7 +15,7 @@
         <field name="name">mail.blacklist.view.form</field>
         <field name="model">mail.blacklist</field>
         <field name="arch" type="xml">
-            <form string="Add Email Blacklist">
+            <form string="Add Email Blacklist" duplicate="false">
                 <sheet>
                     <div class="oe_button_box" name="button_box">
                         <button name="toggle_active" type="object" class="oe_stat_button" icon="fa-archive">