diff --git a/system/core/Router.php b/system/core/Router.php
index af87a30..ab5246a 100644
--- a/system/core/Router.php
+++ b/system/core/Router.php
@@ -494,7 +494,7 @@
 	 * Set directory name
 	 *
 	 * @param	string	$dir	Directory name
-	 * @param	bool	$appent	Whether we're appending rather than setting the full value
+	 * @param	bool	$append	Whether we're appending rather than setting the full value
 	 * @return	void
 	 */
 	public function set_directory($dir, $append = FALSE)