diff --git a/erpnext/accounts/doctype/bank_account/test_bank_account.py b/erpnext/accounts/doctype/bank_account/test_bank_account.py
index 8e1a91bc45f..bd148df33ba 100644
--- a/erpnext/accounts/doctype/bank_account/test_bank_account.py
+++ b/erpnext/accounts/doctype/bank_account/test_bank_account.py
@@ -38,6 +38,6 @@ class TestBankAccount(unittest.TestCase):
 
 		for not_iban in invalid_ibans:
 			bank_account.iban = not_iban
-			msg = _('BankAccount.validate_iban() accepted invalid IBAN {}'.format(iban))
+			msg = _('BankAccount.validate_iban() accepted invalid IBAN {}'.format(not_iban))
 			with self.assertRaises(ValidationError, msg=msg):
 				bank_account.validate_iban()