diff --git a/addons/sale/sale_view.xml b/addons/sale/sale_view.xml
index 39ad5253b0e..a847e5bd5df 100644
--- a/addons/sale/sale_view.xml
+++ b/addons/sale/sale_view.xml
@@ -130,7 +130,8 @@
                                                 on_change="product_id_change(parent.pricelist_id,product_id,product_uom_qty,product_uom,product_uos_qty,product_uos,name,parent.partner_id, 'lang' in context and context['lang'], False, parent.date_order, product_packaging, parent.fiscal_position, True)"
                                                 select="1"/>
                                             <field name="product_uom"
-                                                on_change="product_uom_change(parent.pricelist_id,product_id,product_uom_qty,product_uom,product_uos_qty,product_uos,name,parent.partner_id, 'lang' in context and context['lang'], False, parent.date_order)"/>
+                                                on_change="product_uom_change(parent.pricelist_id,product_id,product_uom_qty,product_uom,product_uos_qty,product_uos,name,parent.partner_id, 'lang' in context and context['lang'], False, parent.date_order)"
+                                                widget="selection"/>
                                             <field
                                                 name="product_packaging"
                                                 context="partner_id=parent.partner_id,quantity=product_uom_qty,pricelist=parent.pricelist_id,shop=parent.shop_id,uom=product_uom"