diff --git a/system/libraries/Output.php b/system/libraries/Output.php
index 756d4b4..53003f1 100644
--- a/system/libraries/Output.php
+++ b/system/libraries/Output.php
@@ -301,7 +301,7 @@
 	function _display_cache(&$CFG, &$RTR)

 	{

 		$CFG =& load_class('Config');

-		$RTR =& load_class('Router');

+		$URI =& load_class('URI');

 	

 		$cache_path = ($CFG->item('cache_path') == '') ? BASEPATH.'cache/' : $CFG->item('cache_path');

 			

@@ -313,7 +313,7 @@
 		// Build the file path.  The file name is an MD5 hash of the full URI

 		$uri =	$CFG->item('base_url').

 				$CFG->item('index_page').

-				$RTR->uri_string;

+				$URI->uri_string;

 				

 		$filepath = $cache_path.md5($uri);