diff --git a/addons/payment/utils.py b/addons/payment/utils.py
index a724984d239..8a05e30e871 100644
--- a/addons/payment/utils.py
+++ b/addons/payment/utils.py
@@ -57,6 +57,10 @@ def singularize_reference_prefix(prefix='tx', separator='-', max_length=None):
     If the `max_length` argument is passed, the end of the prefix can be stripped before
     singularizing to ensure that the result accounts for no more than `max_length` characters.
 
+    Warning: Generated prefixes are *not* uniques! This function should be used only for making
+    transaction reference prefixes more distinguishable and *not* for operations that require the
+    generated value to be unique.
+
     :param str prefix: The custom prefix to singularize
     :param str separator: The custom separator used to separate the prefix from the suffix
     :param int max_length: The maximum length of the singularized prefix
diff --git a/addons/payment_ogone/models/payment_transaction.py b/addons/payment_ogone/models/payment_transaction.py
index 7089d4f2468..505afcfb0b1 100644
--- a/addons/payment_ogone/models/payment_transaction.py
+++ b/addons/payment_ogone/models/payment_transaction.py
@@ -2,6 +2,7 @@
 
 import logging
 import pprint
+import uuid
 
 from lxml import etree, objectify
 from werkzeug import urls
@@ -83,7 +84,7 @@ class PaymentTransaction(models.Model):
         }
         if self.tokenize:
             rendering_values.update({
-                'ALIAS': payment_utils.singularize_reference_prefix(prefix='ODOO-ALIAS'),
+                'ALIAS': f'ODOO-ALIAS-{uuid.uuid4().hex}',
                 'ALIASUSAGE': _("Storing your payment details is necessary for future use."),
             })
         rendering_values.update({