diff --git a/test/test_function_check_barcode.py b/test/test_function_check_barcode.py
index b2aa8f5..e249901 100644
--- a/test/test_function_check_barcode.py
+++ b/test/test_function_check_barcode.py
@@ -1,4 +1,6 @@
 #!/usr/bin/python
+# -*- coding: utf-8 -*-
+
 from __future__ import absolute_import
 from __future__ import division
 from __future__ import print_function