diff --git a/validator_test.go b/validator_test.go
index 1ebdea5..3efdbe6 100644
--- a/validator_test.go
+++ b/validator_test.go
@@ -12239,6 +12239,8 @@ func TestCreditCardFormatValidation(t *testing.T) {
 		{"378282146310005", "credit_card", false},
 		{"4624 7482 3324 9780", "credit_card", true},
 		{"4624 7482 3324  9780", "credit_card", false},
+		{"4624 7482 3324 978A", "credit_card", false},
+		{"4624 7482 332", "credit_card", false},
 	}
 
 	validate := New()