diff --git a/xos/helloworldservice/models.py b/xos/helloworldservice/models.py
index c830b9f..147c984 100644
--- a/xos/helloworldservice/models.py
+++ b/xos/helloworldservice/models.py
@@ -16,8 +16,7 @@
         proxy = True
 
     KIND = HELLO_WORLD_KIND
-    sync_attributes = ("private_ip", "private_mac",
-                       "nat_ip", "nat_mac",)
+    sync_attributes = ("nat_ip", "nat_mac",)
 
     default_attributes = {'display_message': 'Hello World!'}
     def __init__(self, *args, **kwargs):