diff --git a/addons/mrp/wizard/mrp_product_produce.py b/addons/mrp/wizard/mrp_product_produce.py
index b51f50cd452..36c8decbaf3 100644
--- a/addons/mrp/wizard/mrp_product_produce.py
+++ b/addons/mrp/wizard/mrp_product_produce.py
@@ -85,7 +85,7 @@ class MrpProductProduce(models.TransientModel):
     product_uom_id = fields.Many2one('product.uom', 'Unit of Measure')
     lot_id = fields.Many2one('stock.production.lot', string='Lot')
     produce_line_ids = fields.One2many('mrp.product.produce.line', 'product_produce_id', string='Product to Track')
-    product_tracking = fields.Selection(related="product_id.tracking")
+    product_tracking = fields.Selection(related="product_id.tracking", readonly=True)
 
     @api.multi
     def do_produce(self):