diff --git a/src/opnsense/mvc/app/controllers/OPNsense/TrafficShaper/Api/SettingsController.php b/src/opnsense/mvc/app/controllers/OPNsense/TrafficShaper/Api/SettingsController.php
index 1ac22bb40..c395f14b6 100644
--- a/src/opnsense/mvc/app/controllers/OPNsense/TrafficShaper/Api/SettingsController.php
+++ b/src/opnsense/mvc/app/controllers/OPNsense/TrafficShaper/Api/SettingsController.php
@@ -40,6 +40,7 @@ class SettingsController extends ApiMutableModelControllerBase
 {
     protected static $internalModelName = 'ts';
     protected static $internalModelClass = '\OPNsense\TrafficShaper\TrafficShaper';
+    protected static $internalModelUseSafeDelete = true;
 
     /**
      * Retrieve pipe settings or return defaults