diff --git a/lib/Cake/Test/Case/I18n/I18nTest.php b/lib/Cake/Test/Case/I18n/I18nTest.php
index bdc17f27a..637494012 100644
--- a/lib/Cake/Test/Case/I18n/I18nTest.php
+++ b/lib/Cake/Test/Case/I18n/I18nTest.php
@@ -47,6 +47,8 @@ class I18nTest extends CakeTestCase {
  * @return void
  */
 	public function tearDown() {
+		parent::tearDown();
+
 		Cache::delete('object_map', '_cake_core_');
 		App::build();
 		CakePlugin::unload();
diff --git a/lib/Cake/Test/Case/View/Helper/JsHelperTest.php b/lib/Cake/Test/Case/View/Helper/JsHelperTest.php
index 12ee9072b..950e5c221 100644
--- a/lib/Cake/Test/Case/View/Helper/JsHelperTest.php
+++ b/lib/Cake/Test/Case/View/Helper/JsHelperTest.php
@@ -125,7 +125,6 @@ class JsHelperTest extends CakeTestCase {
 	public function setUp() {
 		parent::setUp();
 
-		$this->_asset = Configure::read('Asset.timestamp');
 		Configure::write('Asset.timestamp', false);
 
 		$controller = null;
@@ -148,7 +147,7 @@ class JsHelperTest extends CakeTestCase {
  * @return void
  */
 	public function tearDown() {
-		Configure::write('Asset.timestamp', $this->_asset);
+		parent::tearDown();
 		unset($this->Js);
 	}