diff --git a/addons/mass_mailing/data/mass_mailing_demo.xml b/addons/mass_mailing/data/mass_mailing_demo.xml
index f5695cd1080..a1dd0ab9dfc 100644
--- a/addons/mass_mailing/data/mass_mailing_demo.xml
+++ b/addons/mass_mailing/data/mass_mailing_demo.xml
@@ -132,7 +132,6 @@
         <record id="mass_mail_list_2" model="mail.mass_mailing.list">
             <field name="name">Customers</field>
             <field name="model">res.partner</field>
-            <field name="model_id" eval="ref('base.model_res_partner')"/>
             <field name="domain">[('customer', '=', True)]</field>
         </record>
 
@@ -157,7 +156,6 @@
         <!-- Create campaign and mailings -->
         <record id="mass_mail_category_1" model="mail.mass_mailing.category">
             <field name="name">Marketing</field>
-            <field name="user_id" eval="ref('base.user_root')"/>
         </record>
         <record id="mass_mail_campaign_1" model="mail.mass_mailing.campaign">
             <field name="name">Newsletter</field>