diff --git a/addons/mrp/models/mrp_bom.py b/addons/mrp/models/mrp_bom.py
index 8b53d0e4710..a58ad781b38 100644
--- a/addons/mrp/models/mrp_bom.py
+++ b/addons/mrp/models/mrp_bom.py
@@ -288,7 +288,7 @@ class MrpBomLine(models.Model):
         return self.env['uom.uom'].search([], limit=1, order='id').id
 
     product_id = fields.Many2one('product.product', 'Component', required=True, check_company=True)
-    product_tmpl_id = fields.Many2one('product.template', 'Product Template', related='product_id.product_tmpl_id')
+    product_tmpl_id = fields.Many2one('product.template', 'Product Template', related='product_id.product_tmpl_id', store=True, index=True)
     company_id = fields.Many2one(
         related='bom_id.company_id', store=True, index=True, readonly=True)
     product_qty = fields.Float(