diff --git a/tests/Doctrine/Tests/ORM/Functional/OneToManyBidirectionalAssociationTest.php b/tests/Doctrine/Tests/ORM/Functional/OneToManyBidirectionalAssociationTest.php
index 5ecd77e83..bf7ce5f97 100644
--- a/tests/Doctrine/Tests/ORM/Functional/OneToManyBidirectionalAssociationTest.php
+++ b/tests/Doctrine/Tests/ORM/Functional/OneToManyBidirectionalAssociationTest.php
@@ -14,6 +14,7 @@ class OneToManyBidirectionalAssociationTest extends \Doctrine\Tests\OrmFunctiona
 {
     private $product;
     private $firstFeature;
+    private $secondFeature;
 
     protected function setUp()
     {