diff --git a/bin/grid_regular.py b/bin/grid_regular.py
index eb316ba..135b160 100755
--- a/bin/grid_regular.py
+++ b/bin/grid_regular.py
@@ -1,4 +1,4 @@
-#!/usr/bin/python2.6
+#!/usr/bin/env python
 
 import sys
 import pickle