diff --git a/addons/dine360_kds/models/pos_order_line.py b/addons/dine360_kds/models/pos_order_line.py
index 8b221ee..768f859 100644
--- a/addons/dine360_kds/models/pos_order_line.py
+++ b/addons/dine360_kds/models/pos_order_line.py
@@ -12,7 +12,11 @@ class PosOrderLine(models.Model):
         ('ready', 'Ready'),
         ('served', 'Served'),
         ('cancelled', 'Cancelled')
-    ], string='Preparation Status', default='waiting', tracking=True)
+    ], string='Preparation Status', default='waiting', tracking=True, group_expand='_read_group_preparation_status')
+
+    @api.model
+    def _read_group_preparation_status(self, stages, domain, order):
+        return ['waiting', 'preparing', 'ready', 'served']
 
     color = fields.Integer(string='Color', default=0)
     preparation_time_start = fields.Datetime(string='Start Time')