diff --git a/processing/post/addMises.py b/processing/post/addMises.py
index 55cf6552e..4719c2e35 100755
--- a/processing/post/addMises.py
+++ b/processing/post/addMises.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python3
+#!/usr/bin/env python2.7
 # -*- coding: UTF-8 no BOM -*-
 
 import os,sys,math