diff --git a/xos/core/xoslib/methods/cordsubscriber.py b/xos/core/xoslib/methods/cordsubscriber.py
index 99cc29a..c26ac54 100644
--- a/xos/core/xoslib/methods/cordsubscriber.py
+++ b/xos/core/xoslib/methods/cordsubscriber.py
@@ -393,6 +393,8 @@
         return Response( {"vbng_mapping": mappings} )
 
 class CordDebugIdSerializer(serializers.ModelSerializer, PlusSerializerMixin):
+    # Swagger is failing because CordDebugViewSet has neither a model nor
+    # a serializer_class. Stuck this in here as a placeholder for now.
     id = ReadOnlyField()
     class Meta:
         model = CordSubscriber