diff --git a/src/Wuunder/Model/Model.php b/src/Wuunder/Model/Model.php
index 2f5bcec..fbe882f 100644
--- a/src/Wuunder/Model/Model.php
+++ b/src/Wuunder/Model/Model.php
@@ -4,7 +4,7 @@
 
 use Wuunder\Util\Helper;
 
-class Model implements JsonSerializable
+class Model implements \JsonSerializable
 {
     private $keys;
     protected $data;