diff --git a/src/Symfony/Bundle/FrameworkBundle/Test/KernelTestCase.php b/src/Symfony/Bundle/FrameworkBundle/Test/KernelTestCase.php
index a8fd09dc10..c784748901 100644
--- a/src/Symfony/Bundle/FrameworkBundle/Test/KernelTestCase.php
+++ b/src/Symfony/Bundle/FrameworkBundle/Test/KernelTestCase.php
@@ -45,6 +45,7 @@ abstract class KernelTestCase extends TestCase
     {
         static::ensureKernelShutdown();
         static::$kernel = null;
+        static::$booted = false;
     }
 
     /**