diff --git a/hydra_base/lib/network.py b/hydra_base/lib/network.py
index 7566a358..73db8817 100644
--- a/hydra_base/lib/network.py
+++ b/hydra_base/lib/network.py
@@ -264,7 +264,7 @@ def _bulk_add_resource_attrs(network_id, ref_key, resources, resource_name_map,
                     template_j = template.get_template(resource_type.child_template_id, user_id=admin_id)
                     template_lookup[template_j.id] = template_j
                 for tt in template_j.templatetypes:
-                    typeattr_lookup[tt.id] = tt.typeattrs
+                    typeattr_lookup[tt.id] = tt.typeattrs or []
 
                 typeattrs = typeattr_lookup.get(resource_type.id, []) #TODO this should be type_id
                 for ta in typeattrs: