diff --git a/backend/main.go b/backend/main.go
index b40d8ae..5180a28 100644
--- a/backend/main.go
+++ b/backend/main.go
@@ -33,8 +33,8 @@ func main() {
 	organization := flag.String("organization", "", "self signed ciertificate organization")
 	port := flag.Uint("port", 9500, "server listening port")
 	https := flag.Bool("https", false, "serves as https needs flag -cert and -chain")
-	sslCert := flag.String("cert", "", "ssl certificate path")
-	sslChain := flag.String("chain", "", "ssl chain path")
+	sslKey := flag.String("privkey", "", "ssl private key path")
+	sslFullchain := flag.String("fullchain", "", "ssl fullchain path")
 	debug := flag.Bool("debug", false, "log debug")
 	flag.Parse()
 
@@ -171,7 +171,7 @@ func main() {
 
 		// start https server
 		logger.Info("main", fmt.Sprintf("https listen on ip: %s port: %d", *ip, *port))
-		if err := s.ServeHttps(*ip, *port, cert.Cert{Organization: *organization, CertFile: *sslCert, KeyFile: *sslChain}); err != nil {
+		if err := s.ServeHttps(*ip, *port, cert.Cert{Organization: *organization, CertFile: *sslFullchain, KeyFile: *sslKey}); err != nil {
 			logger.Error("main", "error https server "+err.Error())
 		}
 		return