diff --git a/cake/libs/validation.php b/cake/libs/validation.php
index f90a3a8d330..88a641d1bda 100644
--- a/cake/libs/validation.php
+++ b/cake/libs/validation.php
@@ -549,7 +549,7 @@ function extension($check, $extensions = array('gif', 'jpeg', 'png', 'jpg')) {
  */
 	function ip($check, $type = 'IPv4') {
 		if (function_exists('filter_var')) {
-			return filter_var($check, FILTER_VALIDATE_IP);
+			return (boolean) filter_var($check, FILTER_VALIDATE_IP);
 		}
 
 		$_this =& Validation::getInstance();