diff --git a/tests/Doctrine/Tests/ORM/Functional/Ticket/DDC742Test.php b/tests/Doctrine/Tests/ORM/Functional/Ticket/DDC742Test.php
index 513904418..7e6e200d9 100644
--- a/tests/Doctrine/Tests/ORM/Functional/Ticket/DDC742Test.php
+++ b/tests/Doctrine/Tests/ORM/Functional/Ticket/DDC742Test.php
@@ -8,6 +8,9 @@ require_once __DIR__ . '/../../../TestInit.php';
 
 class DDC742Test extends \Doctrine\Tests\OrmFunctionalTestCase
 {
+    private $userCm;
+    private $commentCm;
+
     protected function setUp()
     {
         parent::setUp();
@@ -15,6 +18,7 @@ class DDC742Test extends \Doctrine\Tests\OrmFunctionalTestCase
         if (\extension_loaded('memcache')) {
             $memcache = new \Memcache();
             $memcache->addServer('localhost');
+            $memcache->flush();
 
             $cacheDriver = new \Doctrine\Common\Cache\MemcacheCache();
             $cacheDriver->setMemcache($memcache);
@@ -123,4 +127,4 @@ class DDC742Comment
      * @var string
      */
     public $content;
-}
\ No newline at end of file
+}