diff --git a/activity.xml b/activity.xml
index c196bd1..3b44b8d 100644
--- a/activity.xml
+++ b/activity.xml
@@ -1,4 +1,6 @@
-<?xml version="1.0" encoding="utf-8"?>
+<?xml version="1.0"?>
+<!-- The COPYRIGHT file at the top level of this repository contains the full
+     copyright notices and license terms. -->
 <tryton>
     <data>
         <record model="ir.action.wizard" id="wizard_replymail">
@@ -12,7 +14,6 @@
             <field name="inherit" ref="activity.activity_activity_form_view"/>
             <field name="name">activity_activity_form</field>
         </record>
-
         <record model="ir.ui.view" id="activity_activity_tree_view">
             <field name="model">activity.activity</field>
             <field name="inherit" ref="activity.activity_activity_tree_view"/>
diff --git a/imap.xml b/imap.xml
index a25665e..9678774 100644
--- a/imap.xml
+++ b/imap.xml
@@ -1,4 +1,6 @@
-<?xml version="1.0" encoding="utf-8"?>
+<?xml version="1.0"?>
+<!-- The COPYRIGHT file at the top level of this repository contains the full
+     copyright notices and license terms. -->
 <tryton>
     <data>
         <record model="ir.ui.view" id="imap_server_view_form">
diff --git a/user.xml b/user.xml
index 039c6e0..87aa066 100644
--- a/user.xml
+++ b/user.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0"?>
-<!-- This file is part asterisk module for Tryton.
-The COPYRIGHT file at the top level of this repository contains the full copyright notices and license terms. -->
+<!-- The COPYRIGHT file at the top level of this repository contains the full
+     copyright notices and license terms. -->
 <tryton>
     <data>
         <record model="ir.ui.view" id="user_view_form">
diff --git a/view/activity_activity_form.xml b/view/activity_activity_form.xml
index e09a646..c7d2eb3 100644
--- a/view/activity_activity_form.xml
+++ b/view/activity_activity_form.xml
@@ -1,4 +1,6 @@
 <?xml version="1.0"?>
+<!-- The COPYRIGHT file at the top level of this repository contains the full
+     copyright notices and license terms. -->
 <data>
     <xpath expr="/form/label[@name='state']" position="replace" />
     <xpath expr="/form/field[@name='state']" position="replace">
diff --git a/view/activity_activity_tree.xml b/view/activity_activity_tree.xml
index 9078dc8..49873c1 100644
--- a/view/activity_activity_tree.xml
+++ b/view/activity_activity_tree.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0"?>
-<!-- This file is part of Tryton.  The COPYRIGHT file at the top level of
-this repository contains the full copyright notices and license terms. -->
+<!-- The COPYRIGHT file at the top level of this repository contains the full
+     copyright notices and license terms. -->
 <data>
     <xpath expr="/tree/field[@name='state']" position="after">
         <button name="new" string="Send Mail"/>