diff --git a/create_ticket_api.php b/create_ticket_api.php
index e254b0a..9549744 100644
--- a/create_ticket_api.php
+++ b/create_ticket_api.php
@@ -49,6 +49,9 @@ if ($conn->connect_error) {
     exit;
 }
 
+// Load application config so UrlHelper can resolve APP_DOMAIN
+require_once __DIR__ . '/config/config.php';
+
 // Authenticate via API key
 require_once __DIR__ . '/middleware/ApiKeyAuth.php';
 require_once __DIR__ . '/models/AuditLogModel.php';