diff --git a/xos/xos_client/xosapi/convenience/vrouterapp.py b/xos/xos_client/xosapi/convenience/vrouterapp.py
index fe647cd..7a670a3 100644
--- a/xos/xos_client/xosapi/convenience/vrouterapp.py
+++ b/xos/xos_client/xosapi/convenience/vrouterapp.py
@@ -5,7 +5,7 @@
     @property
     def interfaces(self):
         app_interfaces = []
-        devices = self.stub.VRouterDevice.objects.filter(vrouter_service_id=self.id)
+        devices = self.stub.VRouterDevice.objects.filter(vrouter_service_id=self.vrouter_service.id)
         for device in devices:
             ports = self.stub.VRouterPort.objects.filter(vrouter_device_id=device.id)
             for port in ports:
diff --git a/xos/xos_client/xosapi/orm.py b/xos/xos_client/xosapi/orm.py
index 4f76a59..8ce0b5c 100644
--- a/xos/xos_client/xosapi/orm.py
+++ b/xos/xos_client/xosapi/orm.py
@@ -44,6 +44,14 @@
         reverse_fkmap=self.gen_reverse_fkmap()
         super(ORMWrapper, self).__setattr__("_reverse_fkmap", reverse_fkmap)
 
+    def create_attr(self, name, value=None):
+        """ setattr(self, ...) will fail for attributes that don't exist in the
+            wrapped grpc class. This is by design. However, if someone really
+            does want to attach a new attribute to this class, then they can
+            call create_attr()
+        """
+        super(ORMWrapper, self).__setattr__(name, value)
+
     def gen_fkmap(self):
         fkmap = {}