diff --git a/xos/core/xoslib/methods/cordsubscriber.py b/xos/core/xoslib/methods/cordsubscriber.py
index 2337b21..08aa9d9 100644
--- a/xos/core/xoslib/methods/cordsubscriber.py
+++ b/xos/core/xoslib/methods/cordsubscriber.py
@@ -32,7 +32,7 @@
         cdn_enable = serializers.BooleanField()
         sliver_name = ReadOnlyField()
         image_name = ReadOnlyField()
-        routeable_subnet = serializers.CharField()
+        routeable_subnet = serializers.CharField(required=False)
 
         humanReadableName = serializers.SerializerMethodField("getHumanReadableName")