diff --git a/lib/Cake/Core/App.php b/lib/Cake/Core/App.php
index 4913c7cc3..fad7b83a1 100644
--- a/lib/Cake/Core/App.php
+++ b/lib/Cake/Core/App.php
@@ -535,7 +535,7 @@ class App {
 		if (!isset(self::$_classMap[$className])) {
 			return false;
 		}
-		if (strpos($className, '..')) {
+		if (strpos($className, '..') !== false) {
 			return false;
 		}