diff --git a/test/test_callinfo.py b/test/test_callinfo.py
index 9c7d0d0..c023fb8 100644
--- a/test/test_callinfo.py
+++ b/test/test_callinfo.py
@@ -1,4 +1,4 @@
-from __future__ import unicode_literals
+# -*- coding: utf-8 -*- 
 from datetime import datetime
 
 import pytest