diff --git a/run_tests.py b/run_tests.py
index ddee4fd255619f7f1013cf83d04f264a9334602d..6e809a439e38ceacded74b2b4a039e1b6e610957 100644
--- a/run_tests.py
+++ b/run_tests.py
@@ -1,3 +1,4 @@
+#!/usr/bin/env python
 import unittest
 
 #Run all tests