diff --git a/partner_fax/views/res_partner.xml b/partner_fax/views/res_partner.xml
index a5bdcbb9d..dbe0a08d7 100644
--- a/partner_fax/views/res_partner.xml
+++ b/partner_fax/views/res_partner.xml
@@ -31,6 +31,9 @@
             <field name="function" position="after">
                 <field name="fax" placeholder="Fax..." widget="phone"/>
             </field>
+            <xpath expr="//field[@name='child_ids']/form//field[@name='function']" position="after">
+                <field name="fax" placeholder="Fax..." widget="phone"/>
+            </xpath>
         </field>
     </record>