diff --git a/plugins/pyscf/PyscfToQp.py b/plugins/pyscf/PyscfToQp.py
index 74ef951c..3fd650ac 100644
--- a/plugins/pyscf/PyscfToQp.py
+++ b/plugins/pyscf/PyscfToQp.py
@@ -1,3 +1,4 @@
+#!/usr/bin/env python2
 
 import numpy,re,sys