diff --git a/stock.py b/stock.py
index 876eabc..7a20cc9 100644
--- a/stock.py
+++ b/stock.py
@@ -553,6 +553,7 @@ class WarehouseStockDetailedStart(ModelView):
         ], depends=['location_storage'])
     location_storage = fields.One2Many('stock.location', None, 'Locations Storage')
     to_date = fields.Date('To Date', required=True)
+    lot = fields.Boolean('Grouping Lot')
 
     @staticmethod
     def default_company():
@@ -589,6 +590,7 @@ class WarehouseStockDetailed(Wizard):
             'company': self.start.company.id,
             'locations': location_ids,
             'to_date': self.start.to_date,
+            'lot': self.start.lot,
         }
         return action, data
 
@@ -604,6 +606,7 @@ class WarehouseStockDetailedReport(Report):
         Company = pool.get('company.company')
         Product = pool.get('product.product')
         Location = pool.get('stock.location')
+        LotbyLocation = pool.get('stock.lots_by_locations')
         if data['locations']:
             ids_location = data['locations']
             locations = Location.browse(ids_location)
@@ -644,11 +647,16 @@ class WarehouseStockDetailedReport(Report):
             stock_context['locations'] = [l.id]
             with Transaction().set_context(stock_context):
                 prdts = Product.search(dom_products, order=[('code', 'ASC')])
+                if data['lot']:
+                    prd_ids = [p.id for p in prdts]
+                    print(prd_ids, 'ids')
+                    prdts = LotbyLocation.search([('product' , 'in', prd_ids)])
             for p in prdts:
                 add_({
                     'parent_name': l.parent.name if l.parent else '',
                     'name': l.name,
-                    'product': p,
+                    'product': p.product if data['lot'] else p,
+                    'lot': p if data['lot'] else None,
                 })
 
         products = values
diff --git a/view/warehouse_stock_detailed_view_form.xml b/view/warehouse_stock_detailed_view_form.xml
index a088453..09e9809 100644
--- a/view/warehouse_stock_detailed_view_form.xml
+++ b/view/warehouse_stock_detailed_view_form.xml
@@ -6,5 +6,7 @@ this repository contains the full copyright notices and license terms. -->
     <field name="company"/>
     <label name="to_date"/>
     <field name="to_date"/>
+    <label name="lot"/>
+    <field name="lot"/>
     <field name="locations" colspan="4"/>
 </form>