diff --git a/apps/files/index.php b/apps/files/index.php
index 7d25c816eb..b8ff08c1b0 100644
--- a/apps/files/index.php
+++ b/apps/files/index.php
@@ -39,7 +39,7 @@ OCP\App::setActiveNavigationEntry('files_index');
 // Load the files
 $dir = isset($_GET['dir']) ? stripslashes($_GET['dir']) : '';
 $dir = \OC\Files\Filesystem::normalizePath($dir);
-$dirInfo = \OC\Files\Filesystem::getFileInfo($dir);
+$dirInfo = \OC\Files\Filesystem::getFileInfo($dir, false);
 // Redirect if directory does not exist
 if (!$dirInfo || !$dirInfo->getType() === 'dir') {
 	header('Location: ' . OCP\Util::getScriptName() . '');
@@ -70,7 +70,7 @@ $config = \OC::$server->getConfig();
 $permissions = $dirInfo->getPermissions();
 
 // information about storage capacities
-$storageInfo=OC_Helper::getStorageInfo($dir);
+$storageInfo=OC_Helper::getStorageInfo($dir, $dirInfo);
 $freeSpace=$storageInfo['free'];
 $uploadLimit=OCP\Util::uploadLimit();
 $maxUploadFilesize=OCP\Util::maxUploadFilesize($dir, $freeSpace);
diff --git a/lib/private/helper.php b/lib/private/helper.php
index d7ac0b5f4f..da3d3cd1c6 100644
--- a/lib/private/helper.php
+++ b/lib/private/helper.php
@@ -875,12 +875,15 @@ class OC_Helper {
 	 * Calculate the disc space for the given path
 	 *
 	 * @param string $path
+	 * @param \OCP\Files\FileInfo $rootInfo (optional)
 	 * @return array
 	 */
-	public static function getStorageInfo($path) {
+	public static function getStorageInfo($path, $rootInfo = null) {
 		// return storage info without adding mount points
-		$rootInfo = \OC\Files\Filesystem::getFileInfo($path, false);
-		$used = $rootInfo['size'];
+		if (is_null($rootInfo)) {
+			$rootInfo = \OC\Files\Filesystem::getFileInfo($path, false);
+		}
+		$used = $rootInfo->getSize();
 		if ($used < 0) {
 			$used = 0;
 		}