diff --git a/lib/setup.php b/lib/setup.php
index eb32e84713..3e46a3dcc9 100644
--- a/lib/setup.php
+++ b/lib/setup.php
@@ -77,8 +77,6 @@ class OC_Setup {
 			OC_Config::setValue('datadirectory', $datadir);
  			OC_Config::setValue('dbtype', $dbtype);
  			OC_Config::setValue('version',implode('.',OC_Util::getVersion()));
- 			OC_Config::setValue('installedat',microtime(true));
- 			OC_Config::setValue('lastupdatedat',microtime(true));
 			if($dbtype == 'mysql') {
 				$dbuser = $options['dbuser'];
 				$dbpass = $options['dbpass'];
@@ -224,6 +222,9 @@ class OC_Setup {
 			}
 
 			if(count($error) == 0) {
+				OC_Appconfig::setValue('core', 'installedat',microtime(true));
+				OC_Appconfig::setValue('core', 'lastupdatedat',microtime(true));
+
 				//create the user and group
 				OC_User::createUser($username, $password);
 				OC_Group::createGroup('admin');
diff --git a/lib/updater.php b/lib/updater.php
index cc4a460253..57623797ae 100644
--- a/lib/updater.php
+++ b/lib/updater.php
@@ -29,12 +29,12 @@ class OC_Updater{
 	 * Check if a new version is available
 	 */
 	public static function check(){
-		OC_Config::setValue('lastupdatedat',microtime(true));
+		OC_Appconfig::setValue('core', 'lastupdatedat',microtime(true));
 
 		$updaterurl='http://apps.owncloud.com/updater.php';
 		$version=OC_Util::getVersion();
-		$version['installed']=OC_Config::getValue( "installedat");
-		$version['updated']=OC_Config::getValue( "lastupdatedat");
+		$version['installed']=OC_Config::getValue('installedat');
+		$version['updated']=OC_Appconfig::getValue('core', 'lastupdatedat', OC_Config::getValue( 'lastupdatedat'));
 		$version['updatechannel']='stable';
 		$versionstring=implode('x',$version);