diff --git a/xpdo/xpdo.class.php b/xpdo/xpdo.class.php
index a4a05db..09ac83d 100644
--- a/xpdo/xpdo.class.php
+++ b/xpdo/xpdo.class.php
@@ -88,6 +88,7 @@
  *
  * @package xpdo
  */
+#[\AllowDynamicProperties]
 class xPDO {
     /**#@+
      * Constants