diff --git a/library/Zend/File/Transfer/Adapter/Abstract.php b/library/Zend/File/Transfer/Adapter/Abstract.php
index f20dd162..dfa1860b 100644
--- a/library/Zend/File/Transfer/Adapter/Abstract.php
+++ b/library/Zend/File/Transfer/Adapter/Abstract.php
@@ -764,7 +764,7 @@ public function hasErrors()
     /**
      * Adds a new filter for this class.
      *
-     * @param  array|string $filter Type of filter to add
+     * @param  array|string|Zend_Filter_Interface $filter Type of filter to add
      * @param  array|string $options   Options to set for the filter
      * @param  array|string $files     Files to limit this filter to
      *
diff --git a/library/Zend/Filter/Null.php b/library/Zend/Filter/Null.php
index 2cbd00da..4e1e134c 100644
--- a/library/Zend/Filter/Null.php
+++ b/library/Zend/Filter/Null.php
@@ -49,7 +49,7 @@ class Zend_Filter_Null implements Zend_Filter_Interface
     /**
      * Constructor.
      *
-     * @param array|string|Zend_Config $options OPTIONAL
+     * @param array|int|string|Zend_Config $options OPTIONAL
      */
     public function __construct($options = null)
     {
diff --git a/library/Zend/Form.php b/library/Zend/Form.php
index 40d6d4cf..afe30dbb 100644
--- a/library/Zend/Form.php
+++ b/library/Zend/Form.php
@@ -2807,7 +2807,7 @@ protected function _getDecorator($name, $options)
     /**
      * Add a decorator for rendering the element.
      *
-     * @param  string|Zend_Form_Decorator_Interface $decorator
+     * @param  array|string|Zend_Form_Decorator_Interface $decorator
      * @param  array|Zend_Config                    $options Options with which to initialize decorator
      *
      * @return Zend_Form
diff --git a/library/Zend/Form/Element/File.php b/library/Zend/Form/Element/File.php
index 95e71bbc..2aa17c57 100644
--- a/library/Zend/Form/Element/File.php
+++ b/library/Zend/Form/Element/File.php
@@ -319,7 +319,7 @@ public function clearValidators()
     /**
      * Add Filter; proxy to adapter.
      *
-     * @param  array|string $filter  Type of filter to add
+     * @param  array|string|Zend_Filter_Interface $filter  Type of filter to add
      * @param  array|string $options Options to set for the filter
      *
      * @return Zend_Form_Element_File