diff --git a/apps/web/src/lib/api.ts b/apps/web/src/lib/api.ts
index 9bae4fa..2e9f7a2 100644
--- a/apps/web/src/lib/api.ts
+++ b/apps/web/src/lib/api.ts
@@ -1,4 +1,4 @@
-const API_BASE = import.meta.env.VITE_API_URL || 'http://localhost:3001';
+const API_BASE = import.meta.env.VITE_API_URL ?? 'http://localhost:3001';
 
 let authToken: string | null = localStorage.getItem('ai-tycoon-auth-token');