diff --git a/library/Zend/Form/Fieldset.php b/library/Zend/Form/Fieldset.php
index 1133c5115ff..4a6bf5b495c 100644
--- a/library/Zend/Form/Fieldset.php
+++ b/library/Zend/Form/Fieldset.php
@@ -23,7 +23,7 @@ class Fieldset extends Element implements FieldsetInterface
     protected $factory;
 
     /**
-     * @var array
+     * @var ElementInterface[]
      */
     protected $byName    = array();