diff --git a/addons/crm/crm_lead_demo.xml b/addons/crm/crm_lead_demo.xml
index 6dc464013f3..e49391e6124 100644
--- a/addons/crm/crm_lead_demo.xml
+++ b/addons/crm/crm_lead_demo.xml
@@ -288,7 +288,7 @@
         <record id="message_email0" model="mail.message">
             <field name="subject">Kitchen design</field>
             <field name="model">crm.lead</field>
-            <field name="res_id" ref="crm_case_15"></field>
+            <field name="res_id" ref="crm_case_15"/>
             <field name="subtype">html</field>
             <field name="body_html"><![CDATA[Email0 inquiry]]></field>
             <field name="type">email</field>
@@ -298,7 +298,7 @@
         <record id="message_note0" model="mail.message">
             <field name="subject">Reply</field>
             <field name="model">crm.lead</field>
-            <field name="res_id" ref="crm_case_15"></field>
+            <field name="res_id" ref="crm_case_15"/>
             <field name="subtype">html</field>
             <field name="body_html"><![CDATA[Internal note0]]></field>
             <field name="type">comment</field>
@@ -307,7 +307,7 @@
         <record id="message_note0_comment0" model="mail.message">
             <field name="subject">Reply</field>
             <field name="model">crm.lead</field>
-            <field name="res_id" ref="crm_case_15"></field>
+            <field name="res_id" ref="crm_case_15"/>
             <field name="subtype">html</field>
             <field name="body_html"><![CDATA[comment on note0]]></field>
             <field name="parent_id" ref="message_note0"/>
@@ -317,7 +317,7 @@
         <record id="message_note0_comment1" model="mail.message">
             <field name="subject">Reply</field>
             <field name="model">crm.lead</field>
-            <field name="res_id" ref="crm_case_15"></field>
+            <field name="res_id" ref="crm_case_15"/>
             <field name="subtype">html</field>
             <field name="body_html"><![CDATA[comment1 on note0]]></field>
             <field name="parent_id" ref="message_note0"/>
@@ -327,7 +327,7 @@
         <record id="message_email1" model="mail.message">
             <field name="subject">Your inquiry</field>
             <field name="model">crm.lead</field>
-            <field name="res_id" ref="crm_case_15"></field>
+            <field name="res_id" ref="crm_case_15"/>
             <field name="subtype">html</field>
             <field name="body_html"><![CDATA[hello, outgoing email]]></field>
             <field name="type">email</field>