diff --git a/addons/point_of_sale/models/pos_order.py b/addons/point_of_sale/models/pos_order.py
index efa169391d7..774837c3f16 100644
--- a/addons/point_of_sale/models/pos_order.py
+++ b/addons/point_of_sale/models/pos_order.py
@@ -6,6 +6,7 @@ from functools import partial
 
 import psycopg2
 import pytz
+import re
 
 from odoo import api, fields, models, tools, _
 from odoo.tools import float_is_zero, float_round
@@ -692,7 +693,7 @@ class PosOrder(models.Model):
             'lines': [[0, 0, line] for line in order.lines.export_for_ui()],
             'statement_ids': [[0, 0, payment] for payment in order.payment_ids.export_for_ui()],
             'name': order.pos_reference,
-            'uid': order.pos_reference[6:],
+            'uid': re.search('([0-9]|-){14}', order.pos_reference).group(0),
             'amount_paid': order.amount_paid,
             'amount_total': order.amount_total,
             'amount_tax': order.amount_tax,