diff --git a/system/libraries/Output.php b/system/libraries/Output.php
index a4d8d34..07990eb 100644
--- a/system/libraries/Output.php
+++ b/system/libraries/Output.php
@@ -308,7 +308,7 @@
 		fwrite($fp, $expire.'TS--->'.$output);
 		flock($fp, LOCK_UN);
 		fclose($fp);
-		@chmod($cache_path, 0777);
+		@chmod($cache_path, DIR_WRITE_MODE);
 
 		log_message('debug', "Cache file written: ".$cache_path);
 	}