diff --git a/public/index.html b/public/index.html
index 648e5c5..119684b 100644
--- a/public/index.html
+++ b/public/index.html
@@ -66,8 +66,7 @@
 
         // --- API Calls ---
         // MODIFIED: This now points to the full server address, including the port.
-        const API_BASE_URL = `http://${window.location.hostname}:3000/api`;
-
+        const API_BASE_URL = `${window.location.protocol}//${window.location.hostname}:3000/api`;
         async function apiCall(endpoint, method = 'GET', body = null) {
             const headers = { 'Content-Type': 'application/json' };
             if (authToken) headers['Authorization'] = `Bearer ${authToken}`;