diff --git a/frontend/src/main.js b/frontend/src/main.js
index 3085bd6..acbd683 100644
--- a/frontend/src/main.js
+++ b/frontend/src/main.js
@@ -531,7 +531,7 @@ async function handleCallback() {
     loginOverlay.classList.add('hidden');
 
     try {
-        const response = await fetch(`${API_URL}/auth/callback?code=${code}&redirect_uri=${encodeURIComponent(AUTH_CONFIG.redirectUri)}`);
+        const response = await fetch(`/auth/callback?code=${code}&redirect_uri=${encodeURIComponent(AUTH_CONFIG.redirectUri)}`);
         const data = await response.json();
 
         if (data.access_token) {