diff --git a/addons/stock/models/stock_location.py b/addons/stock/models/stock_location.py
index 3c95d6695d1..8bca32379d3 100644
--- a/addons/stock/models/stock_location.py
+++ b/addons/stock/models/stock_location.py
@@ -162,9 +162,9 @@ class Route(models.Model):
         'res.company', 'Company',
         default=lambda self: self.env['res.company']._company_default_get('stock.location.route'), index=True,
         help='Leave this field empty if this route is shared between all companies')
-    product_ids = fields.Many2many('product.template', 'stock_route_product', 'route_id', 'product_id', 'Products')
-    categ_ids = fields.Many2many('product.category', 'stock_location_route_categ', 'route_id', 'categ_id', 'Product Categories')
-    warehouse_ids = fields.Many2many('stock.warehouse', 'stock_route_warehouse', 'route_id', 'warehouse_id', 'Warehouses')
+    product_ids = fields.Many2many('product.template', 'stock_route_product', 'route_id', 'product_id', 'Products', copy=False)
+    categ_ids = fields.Many2many('product.category', 'stock_location_route_categ', 'route_id', 'categ_id', 'Product Categories', copy=False)
+    warehouse_ids = fields.Many2many('stock.warehouse', 'stock_route_warehouse', 'route_id', 'warehouse_id', 'Warehouses', copy=False)
 
     @api.onchange('warehouse_selectable')
     def _onchange_warehouse_selectable(self):