diff --git a/cmd/http-gw/server.go b/cmd/http-gw/server.go
index c5852d8..f8a20d9 100644
--- a/cmd/http-gw/server.go
+++ b/cmd/http-gw/server.go
@@ -68,7 +68,8 @@ func newServer(ctx context.Context, serverInfo ServerInfo) (*server, error) {
 
 	if serverInfo.TLS.Enabled {
 		if err = tlsProvider.UpdateCert(serverInfo.TLS.CertFile, serverInfo.TLS.KeyFile); err != nil {
-			return nil, fmt.Errorf("failed to update cert: %w", err)
+			lnErr := ln.Close()
+			return nil, fmt.Errorf("failed to update cert (listener close: %v): %w", lnErr, err)
 		}
 
 		ln = tls.NewListener(ln, &tls.Config{