diff --git a/invoice.xml b/invoice.xml
index bb0a738a88..e531a92c39 100644
--- a/invoice.xml
+++ b/invoice.xml
@@ -1,5 +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. -->
+<!-- This file is part of Tryton.  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="invoice_line_view_form">