diff --git a/app/controllers/health_monitor/health_controller.rb b/app/controllers/health_monitor/health_controller.rb
index 3e979aa..110d39b 100644
--- a/app/controllers/health_monitor/health_controller.rb
+++ b/app/controllers/health_monitor/health_controller.rb
@@ -17,7 +17,7 @@ def check
           render json: statuses.to_json
         end
         format.xml do
-          render xml: statuses
+          render xml: statuses.to_xml
         end
       end
     end