diff --git a/src/MageTest/PhpSpec/MagentoExtension/Autoloader/MageLoader.php b/src/MageTest/PhpSpec/MagentoExtension/Autoloader/MageLoader.php
index <HASH>..<HASH> 100644
--- a/src/MageTest/PhpSpec/MagentoExtension/Autoloader/MageLoader.php
+++ b/src/MageTest/PhpSpec/MagentoExtension/Autoloader/MageLoader.php
@@ -189,6 +189,9 @@ class MageLoader
         array_splice($controller, 2, 0 , 'controllers');
         $pathToController = implode(DS, $controller);
         $classFile = $local . $pathToController . '.php';
+        if (!file_exists($classFile)) {
+            return false;
+        }
         return include_once $classFile;
     }
 }
Add file exists test to prevent warning

Add a test for the file existing ahead of the include_one. Without
the tests the warning thrown would prevent the user from being prompted
to create the file and the spec functionality is blocked.