diff --git a/frontend/next.config.ts b/frontend/next.config.ts
index b8918212..af653217 100644
--- a/frontend/next.config.ts
+++ b/frontend/next.config.ts
@@ -7,8 +7,11 @@ const nextConfig: NextConfig = {
     // In development: use localhost backend
     // In production (Railway): use BACKEND_URL env var or fallback to Railway URL
     const isDev = process.env.NODE_ENV === 'development';
+    // Default to http://backend:8000 in production (Docker) if not set
     const backendUrl = process.env.BACKEND_URL || 
-      (isDev ? "http://localhost:8000" : "https://tradingagents-backend.up.railway.app");
+      (isDev ? "http://localhost:8000" : "http://backend:8000");
+    
+    console.log(`[Next.js] Rewriting API requests to: ${backendUrl}`);
     
     return [
       {