diff --git a/system/cookie.php b/system/cookie.php
index 97cffd2d..7bf83d02 100644
--- a/system/cookie.php
+++ b/system/cookie.php
@@ -72,7 +72,7 @@ public static function put($name, $value, $minutes = 0, $path = '/', $domain = n
 	 */
 	public static function forget($name)
 	{
-		return static::put($key, null, -60);
+		return static::put($name, null, -60);
 	}
 
 }
\ No newline at end of file