diff --git a/lib/Botamp/Client.php b/lib/Botamp/Client.php
index bc688f7..b6a738a 100644
--- a/lib/Botamp/Client.php
+++ b/lib/Botamp/Client.php
@@ -101,5 +101,6 @@ private function bindResources()
         $this->me = new ApiResource('me', $this);
         $this->subscriptions = new ApiResource('subscriptions', $this);
         $this->contacts = new ApiResource('contacts', $this);
+        $this->entityTypes = new ApiResource('entity_types', $this);
     }
 }