diff --git a/core/ajax/update.php b/core/ajax/update.php
index 85d5dc83cc..5a9288a638 100644
--- a/core/ajax/update.php
+++ b/core/ajax/update.php
@@ -10,7 +10,8 @@ if (OC::checkUpgrade(false)) {
 	$l = new \OC_L10N('core');
 	$eventSource = \OC::$server->createEventSource();
 	$updater = new \OC\Updater(
-			\OC::$server->getHTTPHelper(), 
+			\OC::$server->getHTTPHelper(),
+			\OC::$server->getAppConfig(),
 			\OC_Log::$object
 	);
 	$updater->listen('\OC\Updater', 'maintenanceStart', function () use ($eventSource, $l) {
diff --git a/core/command/upgrade.php b/core/command/upgrade.php
index 1d74ad0a90..6e5ac1c5c9 100644
--- a/core/command/upgrade.php
+++ b/core/command/upgrade.php
@@ -84,7 +84,7 @@ class Upgrade extends Command {
 
 		if(\OC::checkUpgrade(false)) {
 			$self = $this;
-			$updater = new Updater(\OC::$server->getHTTPHelper());
+			$updater = new Updater(\OC::$server->getHTTPHelper(), \OC::$server->getAppConfig());
 
 			$updater->setSimulateStepEnabled($simulateStepEnabled);
 			$updater->setUpdateStepEnabled($updateStepEnabled);
diff --git a/lib/private/templatelayout.php b/lib/private/templatelayout.php
index aefb93ec26..fa025721e5 100644
--- a/lib/private/templatelayout.php
+++ b/lib/private/templatelayout.php
@@ -44,7 +44,7 @@ class OC_TemplateLayout extends OC_Template {
 			// Update notification
 			if($this->config->getSystemValue('updatechecker', true) === true &&
 				OC_User::isAdminUser(OC_User::getUser())) {
-				$updater = new \OC\Updater(\OC::$server->getHTTPHelper());
+				$updater = new \OC\Updater(\OC::$server->getHTTPHelper(), \OC::$server->getAppConfig());
 				$data = $updater->check();
 
 				if(isset($data['version']) && $data['version'] != '' and $data['version'] !== Array()) {
diff --git a/lib/private/updater.php b/lib/private/updater.php
index 266cf9cc89..6272f77cfc 100644
--- a/lib/private/updater.php
+++ b/lib/private/updater.php
@@ -30,6 +30,11 @@ class Updater extends BasicEmitter {
 	 * @var \OC\HTTPHelper $helper;
 	 */
 	private $httpHelper;
+	
+	/**
+	 * @var \OCP\IAppConfig;
+	 */
+	private $config;
 
 	private $simulateStepEnabled;
 
@@ -38,9 +43,10 @@ class Updater extends BasicEmitter {
 	/**
 	 * @param \OC\Log $log
 	 */
-	public function __construct($httpHelper, $log = null) {
+	public function __construct($httpHelper, $config,  $log = null) {
 		$this->httpHelper = $httpHelper;
 		$this->log = $log;
+		$this->config = $config;
 		$this->simulateStepEnabled = true;
 		$this->updateStepEnabled = true;
 	}
@@ -75,23 +81,23 @@ class Updater extends BasicEmitter {
 	public function check($updaterUrl = null) {
 
 		// Look up the cache - it is invalidated all 30 minutes
-		if ((\OC_Appconfig::getValue('core', 'lastupdatedat') + 1800) > time()) {
-			return json_decode(\OC_Appconfig::getValue('core', 'lastupdateResult'), true);
+		if (($this->config->getValue('core', 'lastupdatedat') + 1800) > time()) {
+			return json_decode($this->config->getValue('core', 'lastupdateResult'), true);
 		}
 
 		if (is_null($updaterUrl)) {
 			$updaterUrl = 'https://apps.owncloud.com/updater.php';
 		}
 
-		\OC_Appconfig::setValue('core', 'lastupdatedat', time());
+		$this->config->setValue('core', 'lastupdatedat', time());
 
-		if (\OC_Appconfig::getValue('core', 'installedat', '') == '') {
-			\OC_Appconfig::setValue('core', 'installedat', microtime(true));
+		if ($this->config->getValue('core', 'installedat', '') == '') {
+			$this->config->setValue('core', 'installedat', microtime(true));
 		}
 
 		$version = \OC_Util::getVersion();
-		$version['installed'] = \OC_Appconfig::getValue('core', 'installedat');
-		$version['updated'] = \OC_Appconfig::getValue('core', 'lastupdatedat');
+		$version['installed'] = $this->config->getValue('core', 'installedat');
+		$version['updated'] = $this->config->getValue('core', 'lastupdatedat');
 		$version['updatechannel'] = \OC_Util::getChannel();
 		$version['edition'] = \OC_Util::getEditionString();
 		$version['build'] = \OC_Util::getBuild();
@@ -119,7 +125,7 @@ class Updater extends BasicEmitter {
 		}
 
 		// Cache the result
-		\OC_Appconfig::setValue('core', 'lastupdateResult', json_encode($data));
+		$this->config->setValue('core', 'lastupdateResult', json_encode($data));
 		return $tmp;
 	}
 
@@ -219,7 +225,7 @@ class Updater extends BasicEmitter {
 			$repair->run();
 
 			//Invalidate update feed
-			\OC_Appconfig::setValue('core', 'lastupdatedat', 0);
+			$this->config->setValue('core', 'lastupdatedat', 0);
 
 			// only set the final version if everything went well
 			\OC_Config::setValue('version', implode('.', \OC_Util::getVersion()));
diff --git a/tests/lib/updater.php b/tests/lib/updater.php
index 832f60fac0..dc1e9e5446 100644
--- a/tests/lib/updater.php
+++ b/tests/lib/updater.php
@@ -27,13 +27,28 @@ class UpdaterTest extends \Test\TestCase {
 	 * @dataProvider versionCompatibilityTestData
 	 */
 	public function testIsUpgradePossible($oldVersion, $newVersion, $result) {
-		$updater = new Updater(\OC::$server->getHTTPHelper());
+		$updater = new Updater(\OC::$server->getHTTPHelper(), \OC::$server->getConfig());
 		$this->assertSame($result, $updater->isUpgradePossible($oldVersion, $newVersion));
 	}
 	
+	public function testBrokenXmlResponse(){
+		$invalidUpdater = $this->getUpdaterMock('OMG!');
+		$invalidResult = $invalidUpdater->check();
+		$this->assertEmpty($invalidResult);
+	}
 	
-	public function testCheck(){
-		// Valid XML. Empty values
+	public function testEmptyResponse(){
+		$emptyUpdater = $this->getUpdaterMock('');
+		$emptyResult = $emptyUpdater->check();
+		$this->assertEmpty($emptyResult);
+		
+		// Error while fetching new contents e.g. too many redirects
+		$falseUpdater = $this->getUpdaterMock(false);
+		$falseResult = $falseUpdater->check();
+		$this->assertEmpty($falseResult);
+	}
+	
+	public function testValidEmptyXmlResponse(){
 		$updater = $this->getUpdaterMock(
 				'<?xml version="1.0"?><owncloud><version></version><versionstring></versionstring><url></url><web></web></owncloud>'
 		);
@@ -47,18 +62,9 @@ class UpdaterTest extends \Test\TestCase {
 		$this->assertEmpty($result['versionstring']);
 		$this->assertEmpty($result['url']);
 		$this->assertEmpty($result['web']);
-		
-		// Empty feed
-		$emptyUpdater = $this->getUpdaterMock('');
-		$emptyResult = $emptyUpdater->check();
-		$this->assertEmpty($emptyResult);
-		
-		// Error while fetching new contents e.g. too many redirects
-		$falseUpdater = $this->getUpdaterMock(false);
-		$falseResult = $falseUpdater->check();
-		$this->assertEmpty($falseResult);
-		
-		// Valid XML. New version available
+	}
+	
+	public function testValidUpdateResponse(){
 		$newUpdater = $this->getUpdaterMock(
 				'<?xml version="1.0"?>
 <owncloud>
@@ -78,15 +84,14 @@ class UpdaterTest extends \Test\TestCase {
 		$this->assertEquals('ownCloud 7.0.3', $newResult['versionstring']);
 		$this->assertEquals('http://download.owncloud.org/community/owncloud-7.0.3.zip', $newResult['url']);
 		$this->assertEquals('http://owncloud.org/', $newResult['web']);
-		
-		// Invalid XML
-		$invalidUpdater = $this->getUpdaterMock('OMG!');
-		$invalidResult = $invalidUpdater->check();
-		$this->assertEmpty($invalidResult);
 	}
 	
 	protected function getUpdaterMock($content){
 		// Invalidate cache
+		$mockedAppConfig = $this->getMockBuilder('\OC\AppConfig')
+				->disableOriginalConstructor()
+				->getMock()
+		;
 		\OC_Appconfig::setValue('core', 'lastupdatedat', 0);
 		
 		$mockedHTTPHelper = $this->getMockBuilder('\OC\HTTPHelper')
@@ -97,7 +102,7 @@ class UpdaterTest extends \Test\TestCase {
 		$mockedHTTPHelper->method('getUrlContent')
 				->willReturn($content)
 		;
-		return new Updater($mockedHTTPHelper);
+		return new Updater($mockedHTTPHelper, $mockedAppConfig);
 	}
 
 }