diff --git a/src/opnsense/mvc/app/controllers/OPNsense/Core/Api/BackupController.php b/src/opnsense/mvc/app/controllers/OPNsense/Core/Api/BackupController.php
index d0f1df5201..90c8b3ef09 100644
--- a/src/opnsense/mvc/app/controllers/OPNsense/Core/Api/BackupController.php
+++ b/src/opnsense/mvc/app/controllers/OPNsense/Core/Api/BackupController.php
@@ -313,6 +313,7 @@ class BackupController extends ApiControllerBase
             require_once("config.inc");
             global $config;
             $config = \parse_config();
+            require_once("interfaces.inc")
             require_once("console.inc");
             require_once("rrd.inc");