diff --git a/addons/mrp/models/mrp_workorder.py b/addons/mrp/models/mrp_workorder.py
index 41ca5baad38..f0c7d4e4405 100644
--- a/addons/mrp/models/mrp_workorder.py
+++ b/addons/mrp/models/mrp_workorder.py
@@ -33,7 +33,7 @@ class MrpWorkorder(models.Model):
     product_id = fields.Many2one(
         'product.product', 'Product',
         related='production_id.product_id', readonly=True,
-        help='Technical: used in views only.')
+        help='Technical: used in views only.', store=True)
     product_uom_id = fields.Many2one(
         'product.uom', 'Unit of Measure',
         related='production_id.product_uom_id', readonly=True,
diff --git a/addons/mrp/views/mrp_workorder_views.xml b/addons/mrp/views/mrp_workorder_views.xml
index 3074ac240a7..514cbecc51e 100644
--- a/addons/mrp/views/mrp_workorder_views.xml
+++ b/addons/mrp/views/mrp_workorder_views.xml
@@ -280,7 +280,7 @@
         <field name="arch" type="xml">
             <graph string="Operations">
                 <field name="production_id"/>
-                <field name="duration_percent" type="measure"/>
+                <field name="duration" type="measure"/>
             </graph>
         </field>
     </record>