diff --git a/lib/serializers/registrant_api/domain.rb b/lib/serializers/registrant_api/domain.rb
index 64913a7fb..ed6eb2b9c 100644
--- a/lib/serializers/registrant_api/domain.rb
+++ b/lib/serializers/registrant_api/domain.rb
@@ -25,6 +25,7 @@ module Serializers
           registrant: {
             name: domain.registrant.name,
             id: domain.registrant.uuid,
+            org: domain.registrant.org?,
           },
           tech_contacts: contacts(:tech),
           admin_contacts: contacts(:admin),
@@ -60,7 +61,7 @@ module Serializers
           registrar: { name: domain.registrar.name, website: domain.registrar.website },
           registrant: { name: domain.registrant.name, id: domain.registrant.uuid,
                         phone: domain.registrant.phone, email: domain.registrant.email,
-                        ident: domain.registrant.ident }
+                        ident: domain.registrant.ident, org: domain.registrant.org? }
         }
       end