diff --git a/cake/libs/model/model.php b/cake/libs/model/model.php
index 58fa4c826..657aa61dc 100644
--- a/cake/libs/model/model.php
+++ b/cake/libs/model/model.php
@@ -2488,8 +2488,8 @@ class Model extends Overloadable {
  * rule (in case of multiple validation for field) that was broken.
  *
  * @param string $field The name of the field to invalidate
- * @param mixed $value Name of validation rule that was not failed. If no validation key
- * 						is provided, defaults to true.
+ * @param mixed $value Name of validation rule that was not failed, or validation message to
+ *                     be returned. If no validation key is provided, defaults to true.
  * @access public
  */
 	function invalidate($field, $value = true) {