@@ -110,7 +110,12 @@ if err != nil {
 				log.Warn("error splitting host and port", "error", err)
 				host = s.config.BaseURL.Hostname()
 			}
-			url.Host = net.JoinHostPort(host, s.config.BaseURL.Port())
+			port := s.config.BaseURL.Port()
+			if port == "" {
+				url.Host = host
+			} else {
+				url.Host = net.JoinHostPort(host, s.config.BaseURL.Port())
+			}
 			http.Redirect(w, r, url.String(), http.StatusMovedPermanently)
 		})
 		srv.Handler = httpMux