diff --git a/addons/stock/models/stock_picking.py b/addons/stock/models/stock_picking.py
index 61ad4964c4f..6b7141aabd7 100644
--- a/addons/stock/models/stock_picking.py
+++ b/addons/stock/models/stock_picking.py
@@ -15,7 +15,7 @@ from odoo.exceptions import UserError
 class PickingType(models.Model):
     _name = "stock.picking.type"
     _description = "The picking type determines the picking view"
-    _order = 'sequence'
+    _order = 'sequence, id'
 
     name = fields.Char('Picking Type Name', required=True, translate=True)
     color = fields.Integer('Color')
diff --git a/addons/stock/models/stock_warehouse.py b/addons/stock/models/stock_warehouse.py
index 4bcc8edfb98..051bc2774a6 100644
--- a/addons/stock/models/stock_warehouse.py
+++ b/addons/stock/models/stock_warehouse.py
@@ -188,7 +188,7 @@ class Warehouse(models.Model):
         color = available_colors and available_colors[0] or 0
 
         # suit for each warehouse: reception, internal, pick, pack, ship
-        max_sequence = PickingType.search_read([], ['sequence'], limit=1, order='sequence desc')
+        max_sequence = PickingType.search_read([('sequence', '!=', False)], ['sequence'], limit=1, order='sequence desc')
         max_sequence = max_sequence and max_sequence[0]['sequence'] or 0
 
         warehouse_data = {}