diff --git a/README.md b/README.md
index 4854fa1..9382df2 100644
--- a/README.md
+++ b/README.md
@@ -182,7 +182,7 @@ case of an error. The callback provided should return boolean true or
 false.
 
 ```php
-Valitron\Validator::addRule('alwaysFail', function($field, $value, array $params) {
+Valitron\Validator::addRule('alwaysFail', function($field, $value, array $params, array $fields) {
     return false;
 }, 'Everything you do is wrong. You fail.');
 ```
diff --git a/src/Valitron/Validator.php b/src/Valitron/Validator.php
index 7322357..6a48c56 100644
--- a/src/Valitron/Validator.php
+++ b/src/Valitron/Validator.php
@@ -885,7 +885,7 @@ class Validator
 
                 $result = true;
                 foreach ($values as $value) {
-                    $result = $result && call_user_func($callback, $field, $value, $v['params']);
+                    $result = $result && call_user_func($callback, $field, $value, $v['params'], $this->_fields);
                 }
 
                 if (!$result) {