diff --git a/lib/Cake/Model/Datasource/CakeSession.php b/lib/Cake/Model/Datasource/CakeSession.php
index 51b6f8a46..68c5fa144 100644
--- a/lib/Cake/Model/Datasource/CakeSession.php
+++ b/lib/Cake/Model/Datasource/CakeSession.php
@@ -132,7 +132,7 @@ class CakeSession {
 		self::$time = time();
 
 		$checkAgent = Configure::read('Session.checkAgent');
-		if (($checkAgent === true || $checkAgent === null) && env('HTTP_USER_AGENT')) {
+		if (env('HTTP_USER_AGENT')) {
 			self::$_userAgent = md5(env('HTTP_USER_AGENT') . Configure::read('Security.salt'));
 		}
 		self::_setPath($base);