diff --git a/message.xml b/message.xml
index 7c0ed00..1d2750d 100644
--- a/message.xml
+++ b/message.xml
@@ -2,7 +2,7 @@
 <!-- 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 group="1">
+    <data grouped="1">
       <record model="ir.message" id="invalid_code_digits">
           <field name="text">The number of code digits %(account_digits)d of account "%(account)s" must be %(digits)d.</field>
       </record>