diff --git a/web/app/src/urls.js b/web/app/src/urls.js
index ade7ea5c..e47f3e52 100644
--- a/web/app/src/urls.js
+++ b/web/app/src/urls.js
@@ -2,7 +2,9 @@
 let url = new URL(window.location.href);
 // Uncomment this when the web interface is running on a different port than the
 // API, for example when using the Vite devserver. Set the API port here.
-// url.port = "8080";
+if (url.port == "8081") {
+  url.port = "8080";
+}
 url.pathname = "/";
 const flamencoAPIURL = url.href;