diff --git a/Form1.cs b/Form1.cs
index e058b8a..3bdd215 100644
--- a/Form1.cs
+++ b/Form1.cs
@@ -1,6 +1,7 @@
 using System;
 using System.Collections.Generic;
 using System.IO;
+using System.Text;
 using System.Drawing;
 using System.Windows.Forms;