diff --git a/implementations/Python/simplejoy.py b/implementations/Python/simplejoy.py
old mode 100644
new mode 100755
index 986e31e..cb547b3
--- a/implementations/Python/simplejoy.py
+++ b/implementations/Python/simplejoy.py
@@ -1,3 +1,4 @@
+#!/usr/bin/env python
 # -*- coding: utf-8 -*-
 #
 #    Copyright © 2022 Simon Forman