diff --git a/registration/config.go b/registration/config.go
index fbbb835c..0dc77222 100644
--- a/registration/config.go
+++ b/registration/config.go
@@ -24,7 +24,7 @@ type Config struct {
 	MaxSubmitBatchSize  int           `long:"max-submit-batch-size" description:"The maximum number of challenges to submit in a single batch"`
 	SubmitFlushInterval time.Duration `long:"submit-flush-interval" description:"The interval between flushes of the submit queue"`
 
-	Certifier *CertifierConfig
+	Certifier *CertifierConfig `no-flag:"disabled parsing by go-flags because it initializes the pointer"`
 }
 
 type Base64Enc []byte
diff --git a/rpc/rpcserver.go b/rpc/rpcserver.go
index 38606d61..944a1a9b 100644
--- a/rpc/rpcserver.go
+++ b/rpc/rpcserver.go
@@ -129,7 +129,8 @@ func (r *rpcServer) Submit(ctx context.Context, in *api.SubmitRequest) (*api.Sub
 
 func (r *rpcServer) Info(_ context.Context, _ *api.InfoRequest) (*api.InfoResponse, error) {
 	var certifierResp *api.InfoResponse_Cerifier
-	if certifier := r.registration.CertifierInfo(); certifier != nil {
+	certifier := r.registration.CertifierInfo()
+	if certifier != nil && len(certifier.URL) > 0 {
 		certifierResp = &api.InfoResponse_Cerifier{
 			Url:    certifier.URL,
 			Pubkey: certifier.PubKey,