diff --git a/tests.py b/tests.py
index 09c3d6e..4d28423 100644
--- a/tests.py
+++ b/tests.py
@@ -1,4 +1,6 @@
-# coding:utf-8
+#!/usr/bin/env python
+# coding: utf-8
+
 # nosetests --nocapture tests.py
 from nose.tools import eq_