diff --git a/cake/libs/validation.php b/cake/libs/validation.php
index fc414ac88..19e45ed98 100644
--- a/cake/libs/validation.php
+++ b/cake/libs/validation.php
@@ -791,7 +791,7 @@ class Validation extends Object {
 		$_this =& Validation::getInstance();
 		$_this->check = $check;
 		$_this->regex = '/^(?:(?:https?|ftps?|file|news|gopher):\\/\\/)?(?:(?:(?:25[0-5]|2[0-4]\d|(?:(?:1\d)?|[1-9]?)\d)\.){3}(?:25[0-5]|2[0-4]\d|(?:(?:1\d)?|[1-9]?)\d)'
-							. '|(?:[0-9a-z]{1}[0-9a-z\\-]*\\.)*(?:[0-9a-z]{1}[0-9a-z\\-]{0,56})\\.(?:[a-z]{2,6}|[a-z]{2}\\.[a-z]{2,6})'
+							. '|(?:[0-9a-z]{1}[0-9a-z\\-]*\\.)*(?:[0-9a-z]{1}[0-9a-z\\-]{0,62})\\.(?:[a-z]{2,6}|[a-z]{2}\\.[a-z]{2,6})'
 							. '(?::[0-9]{1,4})?)(?:\\/?|\\/[\\w\\-\\.,\'@?^=%&:;\/~\\+#]*[\\w\\-\\@?^=%&\/~\\+#])$/i';
         return $_this->_check();
 	}