2 files changed, 12 insertions, 2 deletions
diff --git a/phpBB/install/index.php b/phpBB/install/index.php
index e683324bdf..43970029cb 100644
--- a/phpBB/install/index.php
+++ b/phpBB/install/index.php
@@ -254,7 +254,12 @@ $phpbb_path_helper = $phpbb_container->get('path_helper');
 $template = new \phpbb\template\twig\twig($phpbb_path_helper, $config, $user, new \phpbb\template\context());
 $paths = array($phpbb_root_path . 'install/update/new/adm/style', $phpbb_admin_path . 'style');
 $paths = array_filter($paths, 'is_dir');
-$template->set_custom_style('adm', $paths);
+$template->set_custom_style(array(
+	array(
+		'name' 		=> 'adm',
+		'ext_path' 	=> 'adm/style/',
+	),
+), $paths);
 
 $path = array_shift($paths);
 
diff --git a/phpBB/install/install_update.php b/phpBB/install/install_update.php
index 1a90efc2b4..ab5fcc3f2b 100644
--- a/phpBB/install/install_update.php
+++ b/phpBB/install/install_update.php
@@ -145,7 +145,12 @@ class install_update extends module
 		// Set custom template again. ;)
 		$paths = array($phpbb_root_path . 'install/update/new/adm/style', $phpbb_admin_path . 'style');
 		$paths = array_filter($paths, 'is_dir');
-		$template->set_custom_style('adm', $paths);
+		$template->set_custom_style(array(
+			array(
+				'name' 		=> 'adm',
+				'ext_path' 	=> 'adm/style/',
+			),
+		), $paths);
 
 		$template->assign_vars(array(
 			'S_USER_LANG'			=> $user->lang['USER_LANG'],