diff --git a/core/js/update.js b/core/js/update.js
index 5c1054adcb495..1613c3cc93bf1 100644
--- a/core/js/update.js
+++ b/core/js/update.js
@@ -160,6 +160,7 @@ window.addEventListener('DOMContentLoaded', function() {
 		});
 		return false;
 	});
+
 	$('.update-show-detailed').on('click', function() {
 		$('#update-progress-detailed').toggleClass('hidden');
 		return false;
diff --git a/lib/base.php b/lib/base.php
index 0f08102c81f56..6578d50679629 100644
--- a/lib/base.php
+++ b/lib/base.php
@@ -365,10 +365,10 @@ private static function printUpgradePage(\OC\SystemConfig $systemConfig) {
 
 		$oldTheme = $systemConfig->getValue('theme');
 		$systemConfig->setValue('theme', '');
-		OC_Util::addScript('core', 'common');
-		OC_Util::addScript('core', 'main');
-		OC_Util::addTranslations('core');
-		OC_Util::addScript('update', null, 'core');
+		\OCP\Util::addScript('core', 'common');
+		\OCP\Util::addScript('core', 'main');
+		\OCP\Util::addTranslations('core');
+		\OCP\Util::addScript('core', 'update');
 
 		/** @var \OC\App\AppManager $appManager */
 		$appManager = \OC::$server->getAppManager();