diff --git a/src/index.tsx b/src/index.tsx
index b48f31a..4bffa5d 100644
--- a/src/index.tsx
+++ b/src/index.tsx
@@ -65,7 +65,7 @@ if (process.env.NODE_ENV !== "production") {
   });
 }
 
-app.listen(process.env.PORT || 3000);
+app.listen(process.env.CONVERTX_PORT || process.env.PORT || 3000);
 
 console.log(`🦊 Elysia is running at http://${app.server?.hostname}:${app.server?.port}${WEBROOT}`);