diff --git a/src/tlshd/server.c b/src/tlshd/server.c
index e80f2fd..56416dc 100644
--- a/src/tlshd/server.c
+++ b/src/tlshd/server.c
@@ -224,6 +224,8 @@ static int tlshd_server_x509_verify_function(gnutls_session_t session,
 			return GNUTLS_E_CERTIFICATE_ERROR;
 		}
 		peerid = tlshd_keyring_create_cert(cert, parms->peername);
+		if (peerid == TLS_NO_PEERID)
+			peerid = UINT_MAX;
 		g_array_append_val(parms->remote_peerids, peerid);
 		gnutls_x509_crt_deinit(cert);
 	}