diff --git a/managedinstalls_processor.php b/managedinstalls_processor.php
index 9c972b9..8445357 100644
--- a/managedinstalls_processor.php
+++ b/managedinstalls_processor.php
@@ -5,6 +5,8 @@
 
 class Managedinstalls_processor extends Processor
 {
+    private $timestamp;
+    
     public function run($plist)
     {
         $this->timestamp = date('Y-m-d H:i:s');