diff --git a/compile.py b/compile.py
index 43e92ff..c7c5db6 100755
--- a/compile.py
+++ b/compile.py
@@ -1,4 +1,4 @@
-#! /usr/bin/env python
+#!/usr/bin/python2
 
 import subprocess
 import sys
diff --git a/get_pythia8_version.py b/get_pythia8_version.py
index ad71984..12774db 100755
--- a/get_pythia8_version.py
+++ b/get_pythia8_version.py
@@ -1,4 +1,4 @@
-#! /usr/bin/env python
+#!/usr/bin/python2
 
 import sys
 import os
diff --git a/make_tarball.py b/make_tarball.py
index beae595..8f90224 100755
--- a/make_tarball.py
+++ b/make_tarball.py
@@ -1,4 +1,4 @@
-#! /usr/bin/env python
+#!/usr/bin/python2
 
 import tarfile
 import os