diff --git a/main.py b/main.py
index 82134af..621d610 100644
--- a/main.py
+++ b/main.py
@@ -4,6 +4,7 @@
 __author__ = 'kinoshitakenta'
 __email__ = "ybs0306748@gmail.com"
 
+import ctypes
 import logging
 import os
 from pathlib import Path