diff --git a/phpBB/phpbb/install/module/install_data/task/create_search_index.php b/phpBB/phpbb/install/module/install_data/task/create_search_index.php
index 1a9480de75..ecd0bb40a3 100644
--- a/phpBB/phpbb/install/module/install_data/task/create_search_index.php
+++ b/phpBB/phpbb/install/module/install_data/task/create_search_index.php
@@ -74,6 +74,8 @@ class create_search_index extends \phpbb\install\task_base
 		$this->db				= $container->get('dbal.conn');
 		$this->phpbb_dispatcher = $container->get('dispatcher');
 		$this->user 			= $container->get('user');
+		$this->phpbb_root_path	= $phpbb_root_path;
+		$this->php_ext			= $php_ext;
 
 		parent::__construct(true);
 	}