diff --git a/app.js b/app.js
index ee2e176..f8611f3 100644
--- a/app.js
+++ b/app.js
@@ -1,6 +1,6 @@
 const express = require('express');
 const path = require('path');
-const PORT = 3000;
+const port = process.env.PORT || 3000; // process.env.PORT is for Azure.
 
 const app = express();
 
@@ -16,7 +16,7 @@ app.get('/', (req, res) => {
  
 
 // Iniciar el servidor
-app.listen(PORT, () => {
-    console.log(`Servidor corriendo en http://localhost:${PORT}`);
+app.listen(port, () => {
+    console.log(`Servidor corriendo en http://localhost:${port}`);
  });
  
\ No newline at end of file