diff --git a/purchase_usability_extension/purchase_view.xml b/purchase_usability_extension/purchase_view.xml
index ce9cd8c..e01cc15 100644
--- a/purchase_usability_extension/purchase_view.xml
+++ b/purchase_usability_extension/purchase_view.xml
@@ -30,6 +30,9 @@
         <xpath expr="//field[@name='order_line']/tree/field[@name='product_id']" position="before">
             <field name="sequence" invisible="1"/>
         </xpath>
+        <field name="fiscal_position" position="attributes">
+            <attribute name="widget">selection</attribute>
+        </field>
     </field>
 </record>