diff --git a/mrp_multi_level/models/product_product.py b/mrp_multi_level/models/product_product.py
index 035435a7d..fb3c12394 100644
--- a/mrp_multi_level/models/product_product.py
+++ b/mrp_multi_level/models/product_product.py
@@ -10,7 +10,7 @@ from odoo import fields, models
 class Product(models.Model):
     _inherit = "product.product"
 
-    llc = fields.Integer(string="Low Level Code", default=0)
+    llc = fields.Integer(string="Low Level Code", default=0, index=True)
     manufacturing_order_ids = fields.One2many(
         comodel_name="mrp.production",
         inverse_name="product_id",
diff --git a/mrp_multi_level/wizards/mrp_multi_level.py b/mrp_multi_level/wizards/mrp_multi_level.py
index 352baf18f..ce2f41978 100644
--- a/mrp_multi_level/wizards/mrp_multi_level.py
+++ b/mrp_multi_level/wizards/mrp_multi_level.py
@@ -297,8 +297,7 @@ class MultiLevelMrp(models.TransientModel):
             )
             products = bom_lines.mapped("product_id")
             products.write({"llc": llc})
-            products = self.env["product.product"].search([("llc", "=", llc)])
-            counter = len(products)
+            counter = self.env["product.product"].search_count([("llc", "=", llc)])
             log_msg = "Low level code {} finished - Nbr. products: {}".format(
                 llc, counter
             )