diff --git a/qubes/vm/adminvm.py b/qubes/vm/adminvm.py
index 2b5cd916..868656fb 100644
--- a/qubes/vm/adminvm.py
+++ b/qubes/vm/adminvm.py
@@ -49,6 +49,12 @@ class AdminVM(qubes.vm.BaseVM):
         default='00000000-0000-0000-0000-000000000000',
         setter=qubes.property.forbidden)
 
+    default_dispvm = qubes.VMProperty('default_dispvm',
+        load_stage=4,
+        allow_none=True,
+        default=(lambda self: self.app.default_dispvm),
+        doc='Default VM to be used as Disposable VM for service calls.')
+
     def __init__(self, *args, **kwargs):
         super().__init__(*args, **kwargs)