diff --git a/addons/payment_payulatam/models/payment.py b/addons/payment_payulatam/models/payment.py
index 8389f6eb42e..df487543c45 100644
--- a/addons/payment_payulatam/models/payment.py
+++ b/addons/payment_payulatam/models/payment.py
@@ -82,7 +82,7 @@ class PaymentTransactionPayulatam(models.Model):
         if not reference or not txnid or not sign:
             raise ValidationError(_('PayUlatam: received data with missing reference (%s) or transaction id (%s) or sign (%s)') % (reference, txnid, sign))
 
-        transaction = self.search([('acquirer_reference', '=', reference)])
+        transaction = self.search([('reference', '=', reference)])
 
         if not transaction:
             error_msg = (_('PayUlatam: received data for reference %s; no order found') % (reference))
diff --git a/addons/payment_payulatam/tests/test_payulatam.py b/addons/payment_payulatam/tests/test_payulatam.py
index 2bec371b81a..10914a98308 100644
--- a/addons/payment_payulatam/tests/test_payulatam.py
+++ b/addons/payment_payulatam/tests/test_payulatam.py
@@ -121,10 +121,9 @@ class PayUlatamForm(PayUlatamCommon):
             'amount': 0.01,
             'acquirer_id': self.payulatam.id,
             'currency_id': self.currency_euro.id,
-            'reference': 'test_ref_2',
+            'reference': 'test_ref_10',
             'partner_name': 'Norbert Buyer',
             'partner_country_id': self.country_france.id,
-            'acquirer_reference': 'test_ref_10',
             'partner_id': self.buyer_id})
 
         # validate transaction