diff --git a/phpBB/includes/controller/helper.php b/phpBB/includes/controller/helper.php
index 8bb4427382..6b697c7e46 100644
--- a/phpBB/includes/controller/helper.php
+++ b/phpBB/includes/controller/helper.php
@@ -47,12 +47,6 @@ class phpbb_controller_helper
 	*/
 	protected $php_ext;
 
-	/**
-	* Base URL
-	* @var array
-	*/
-	protected $url_base;
-
 	/**
 	* Constructor
 	*
@@ -101,21 +95,7 @@ class phpbb_controller_helper
 	*/
 	public function url(array $url_parts, $query = '')
 	{
-		return append_sid($this->root_path . $this->url_base . implode('/', $url_parts), $query);
-	}
-
-	/**
-	* Set base to prepend to urls generated by url()
-	* This allows extensions to have a certain 'directory' under which
-	* all their pages are served, but not have to type it every time
-	*
-	* @param array $url_parts Each array element is a 'folder'
-	*		i.e. array('my', 'ext') maps to ./app.php/my/ext
-	* @return null
-	*/
-	public function set_url_base(array $url_parts)
-	{
-		$this->url_base = !empty($url_parts) ? implode('/', $url_parts) . '/' : '';
+		return append_sid($this->root_path . implode('/', $url_parts), $query);
 	}
 
 	/**