diff --git a/src/AutotaskObjects/Entity.php b/src/AutotaskObjects/Entity.php
index 431bdb4..4a08a49 100644
--- a/src/AutotaskObjects/Entity.php
+++ b/src/AutotaskObjects/Entity.php
@@ -4,6 +4,7 @@
 class Entity
 {
     // Required
+    public $id;
     public $Fields;
     public $UserDefinedFields;
 }