diff --git a/framework/api/control.class.php b/framework/api/control.class.php
index a6a2e96787..36f59b7d5b 100644
--- a/framework/api/control.class.php
+++ b/framework/api/control.class.php
@@ -154,7 +154,7 @@ class control extends baseControl
             $output['md5']    = md5($output['data']);
 
             ob_start();
-            echo $this->output;
+            echo json_encode($output);
 
             return;
         }