diff --git a/addons/pos_restaurant/models/pos_order.py b/addons/pos_restaurant/models/pos_order.py
index d465c7c3194..3d15ae02fc2 100644
--- a/addons/pos_restaurant/models/pos_order.py
+++ b/addons/pos_restaurant/models/pos_order.py
@@ -20,8 +20,8 @@ class PosOrderLine(models.Model):
 class PosOrder(models.Model):
     _inherit = 'pos.order'
 
-    table_id = fields.Many2one('restaurant.table', string='Table', help='The table where this order was served', index='btree_not_null')
-    customer_count = fields.Integer(string='Guests', help='The amount of customers that have been served by this order.')
+    table_id = fields.Many2one('restaurant.table', string='Table', help='The table where this order was served', index='btree_not_null', readonly=True)
+    customer_count = fields.Integer(string='Guests', help='The amount of customers that have been served by this order.', readonly=True)
     multiprint_resume = fields.Char(string='Multiprint Resume', help="Last printed state of the order")
 
     def _get_pack_lot_lines(self, order_lines):