diff --git a/netbox/utilities/mptt.py b/netbox/utilities/mptt.py
index 1bae2053d..25ce01a6c 100644
--- a/netbox/utilities/mptt.py
+++ b/netbox/utilities/mptt.py
@@ -16,4 +16,8 @@ class TreeManager(Manager.from_queryset(TreeQuerySet), TreeManager_):
     """
     Extend django-mptt's TreeManager to incorporate RestrictedQuerySet().
     """
-    pass
+    def db_manager(self, using=None, hints=None):
+        manager = super().db_manager(using, hints)
+
+        # Return an unrestricted QuerySet for use by MPTT
+        return manager.unrestricted()