diff --git a/lib/cartodb/api/middlewares/error-middleware.js b/lib/cartodb/api/middlewares/error-middleware.js
index e1f2e111..97d6d3eb 100644
--- a/lib/cartodb/api/middlewares/error-middleware.js
+++ b/lib/cartodb/api/middlewares/error-middleware.js
@@ -69,6 +69,7 @@ function populateLimitErrors (errors) {
             error.message = 'You are over platform\'s limits: Max render capacity exceeded' +
                 ' Contact CARTO support for more details.';
             error.type = 'limit';
+            error.subtype = 'render-capacity'
             error.http_status = 429;
 
             return error;