diff --git a/apps/files/index.php b/apps/files/index.php
index cdbedbba47..9d3eb41079 100644
--- a/apps/files/index.php
+++ b/apps/files/index.php
@@ -111,5 +111,5 @@ $tmpl->assign('files', $files);
 $tmpl->assign('uploadMaxFilesize', $maxUploadFilesize);
 $tmpl->assign('uploadMaxHumanFilesize', OCP\Util::humanFileSize($maxUploadFilesize));
 $tmpl->assign('allowZipDownload', intval(OCP\Config::getSystemValue('allowZipDownload', true)));
-$tmpl->assign('usedSpacePercent', $storageInfo['relative']);
+$tmpl->assign('usedSpacePercent', (int)$storageInfo['relative']);
 $tmpl->printPage();