diff --git a/app/controllers/api/v1/registrant/registry_locks_controller.rb b/app/controllers/api/v1/registrant/registry_locks_controller.rb
index 5100cd748..d431b5cd0 100644
--- a/app/controllers/api/v1/registrant/registry_locks_controller.rb
+++ b/app/controllers/api/v1/registrant/registry_locks_controller.rb
@@ -9,8 +9,7 @@ module Api
 
         def create
           if @domain.apply_registry_lock
-            serializer = Serializers::RegistrantApi::Domain.new(@domain)
-            render json: serializer.to_json
+            render json: serialized_domain(@domain)
           else
             render json: { errors: [{ base: ['Domain cannot be locked'] }] },
                    status: :unprocessable_entity
@@ -19,8 +18,7 @@ module Api
 
         def destroy
           if @domain.remove_registry_lock
-            serializer = Serializers::RegistrantApi::Domain.new(@domain)
-            render json: serializer.to_json
+            render json: serialized_domain(@domain)
           else
             render json: { errors: [{ base: ['Domain is not locked'] }] },
                    status: :unprocessable_entity
@@ -46,6 +44,11 @@ module Api
           ] },
                  status: :unauthorized and return
         end
+
+        def serialized_domain(domain)
+          serializer = Serializers::RegistrantApi::Domain.new(domain)
+          serializer.to_json
+        end
       end
     end
   end