1 files changed, 3 insertions, 1 deletions
diff --git a/source/clusters.py b/source/clusters.py
index bdfebe6e..02766bdf 100755
--- a/source/clusters.py
+++ b/source/clusters.py
@@ -1,4 +1,6 @@
-# -*- coding: utf-8 -*-
+#! /usr/bin/env python
+#-*- coding: utf-8 -*-
+
 import random
 
 from math import sqrt