diff --git a/doc/Scripts/correlate.py b/doc/Scripts/correlate.py
index 7db1763fcd..5a0aaaf2cc 100644
--- a/doc/Scripts/correlate.py
+++ b/doc/Scripts/correlate.py
@@ -1,4 +1,4 @@
-#!/usr/bin/python
+#!/usr/bin/env python
 """
   function: 
     parse the block of thermo data in a lammps logfile and perform auto- and