diff --git a/runtests.py b/runtests.py
index 6bdf8b9..be4f663 100755
--- a/runtests.py
+++ b/runtests.py
@@ -1,4 +1,4 @@
-#!/bin/python3
+#!/usr/bin/env python3
 
 from __future__ import print_function, unicode_literals