diff --git a/lib/json.js b/lib/json.js
index 5ae5ff3..33b0f80 100644
--- a/lib/json.js
+++ b/lib/json.js
@@ -6,7 +6,7 @@ exports.show = function(options) {
         if (options.status === 204) {
             res.send(204);
         } else {
-            res.json(req.instance.toObject(), options.status);
+            res.json(req.instance, options.status);
         }
     };
 };