diff --git a/lib/resources.js b/lib/resources.js
index d5d4e70..3b9a99b 100644
--- a/lib/resources.js
+++ b/lib/resources.js
@@ -51,7 +51,10 @@ var swaggerListTypeRegex = /List\[([A-Za-z]+)\]/;
 function Resource (client, id, objValues) {
   var self = this;
 
-  self._client = client;
+  Object.defineProperty(self, '_client', {
+      value: client
+  });
+
   // id is optional
   if (!objValues) {
     objValues = id;