diff --git a/library/Zend/Form/View/Helper/AbstractHelper.php b/library/Zend/Form/View/Helper/AbstractHelper.php
index e4079572cd8..3d2044fc96d 100644
--- a/library/Zend/Form/View/Helper/AbstractHelper.php
+++ b/library/Zend/Form/View/Helper/AbstractHelper.php
@@ -131,6 +131,8 @@ abstract class AbstractHelper extends BaseAbstractHelper
         'onvolumechange'     => true,
         'onwaiting'          => true,
         'role'               => true,
+        'aria-labelled-by'   => true,
+        'aria-described-by'  => true,
         'spellcheck'         => true,
         'style'              => true,
         'tabindex'           => true,