remove reference to Subnet
diff --git a/plstackapi/core/serializers.py b/plstackapi/core/serializers.py
index b6a9e7d..b6d430a 100644
--- a/plstackapi/core/serializers.py
+++ b/plstackapi/core/serializers.py
@@ -185,7 +185,6 @@
                  SitePrivilege: SitePrivilegeSerializer,
                  Slice: SliceSerializer,
                  SliceMembership: SliceMembershipSerializer,
-                 Subnet: SubnetSerializer,
                  Node: NodeSerializer,
                  Sliver: SliverSerializer,
                  DeploymentNetwork: DeploymentNetworkSerializer,