diff --git a/vite.config.ts b/vite.config.ts
index 935c00a..5075b35 100644
--- a/vite.config.ts
+++ b/vite.config.ts
@@ -108,7 +108,7 @@ export default defineConfig({
     ],
     server: {
         https: true,
-        host: new URL(env["APP_URL"]).hostname,
+        host: env["APP_URL"] ? new URL(env["APP_URL"]).hostname : '',
         port: 4443,
         watch: {
             usePolling: true,