diff --git a/setup.py b/setup.py
old mode 100644
new mode 100755
index 7b10df3..e43a68b
--- a/setup.py
+++ b/setup.py
@@ -1,3 +1,4 @@
+#!/usr/bin/env python
 """This calls the setup routine for Python 2 or 3 as required."""
 
 import sys