diff --git a/start.php b/start.php
index d555058..c235b14 100644
--- a/start.php
+++ b/start.php
@@ -8,7 +8,7 @@
 
     $uid = $_GET['uid'];
     $length = ($_GET['length'] && gettype($_GET['length']) == 'integer') ? $_GET['length'] : 10;
-    echo gettype($_GET['length']);
+    echo gettype(+$_GET['length']);
     echo $length;
 
 ?>