diff --git a/app/frontend/src/pages/tts.js b/app/frontend/src/pages/tts.js
index 99959bc8..bd1119c2 100644
--- a/app/frontend/src/pages/tts.js
+++ b/app/frontend/src/pages/tts.js
@@ -49,7 +49,7 @@ const Page = () => {
       const responseData = await response.json();  
       if (responseData) {
         if (response.ok) {
-          const audioResponse = await fetch(`http://localhost:5000/audio/${responseData.filename}`,
+          const audioResponse = await fetch(`${process.env.NEXT_PUBLIC_BACKEND_URL}/audio/${responseData.filename}`,
           {
             method: 'GET',
           });