diff --git a/certificate_test.go b/certificate_test.go
index 8616641..9951d7a 100644
--- a/certificate_test.go
+++ b/certificate_test.go
@@ -29,6 +29,7 @@ func TestCertificateCreation(t *testing.T) {
 	cert_opts := CertificateOptions{
 		// KeyUsage:  x509.KeyUsageEncipherOnly | x509.KeyUsageKeyEncipherment | x509.KeyUsageCertSign,
 		SerialNumber: big.NewInt(1),
+		CALength:     -1,
 	}
 
 	cert, err := csr.ToCertificate(pk, cert_opts, nil)
@@ -42,6 +43,9 @@ func TestCertificateCreation(t *testing.T) {
 }
 
 func fieldsAreSame(data CertificateData, cert *Certificate) bool {
+	if cert == nil {
+		return false
+	}
 	if data.Subject.CommonName != cert.Subject.CommonName {
 		return false
 	}