diff --git a/pkg/util/pki/csr.go b/pkg/util/pki/csr.go
index 8b059c9fe..b941e529b 100644
--- a/pkg/util/pki/csr.go
+++ b/pkg/util/pki/csr.go
@@ -193,7 +193,7 @@ func GenerateCSR(crt *v1.Certificate) (*x509.CertificateRequest, error) {
 		return nil, err
 	}
 
-	if len(commonName) == 0 && len(dnsNames) == 0 && len(uriNames) == 0 && len(crt.Spec.EmailAddresses) == 0 {
+	if len(commonName) == 0 && len(dnsNames) == 0 && len(uriNames) == 0 && len(crt.Spec.EmailAddresses) == 0 && len(crt.Spec.IPAddresses) == 0 {
 		return nil, fmt.Errorf("no common name, DNS name, URI SAN, or Email SAN specified on certificate")
 	}