diff --git a/addons/mrp/models/stock_picking.py b/addons/mrp/models/stock_picking.py
index e05de6dd31a..7f664798874 100644
--- a/addons/mrp/models/stock_picking.py
+++ b/addons/mrp/models/stock_picking.py
@@ -9,7 +9,7 @@ class StockPickingType(models.Model):
 
     code = fields.Selection(selection_add=[
         ('mrp_operation', 'Manufacturing')
-    ], ondelete={'mrp_operation': 'cascade'})
+    ], ondelete={'mrp_operation': lambda recs: recs.write({'code': 'incoming', 'active': False})})
     count_mo_todo = fields.Integer(string="Number of Manufacturing Orders to Process",
         compute='_get_mo_count')
     count_mo_waiting = fields.Integer(string="Number of Manufacturing Orders Waiting",