diff --git a/patacrep/authors.py b/patacrep/authors.py
index a1feda2e..8a25c92b 100644
--- a/patacrep/authors.py
+++ b/patacrep/authors.py
@@ -1,4 +1,3 @@
-#!/usr/bin/env python
 # -*- coding: utf-8 -*-
 
 """Authors string management."""
diff --git a/patacrep/build.py b/patacrep/build.py
old mode 100755
new mode 100644
index 2be632b4..1a8f1640
--- a/patacrep/build.py
+++ b/patacrep/build.py
@@ -1,4 +1,3 @@
-#!/usr/bin/env python
 # -*- coding: utf-8 -*-
 
 """Build a songbook, according to parameters found in a .sb file."""
diff --git a/patacrep/encoding.py b/patacrep/encoding.py
index d3c32a84..8ba7de61 100644
--- a/patacrep/encoding.py
+++ b/patacrep/encoding.py
@@ -1,4 +1,3 @@
-#!/usr/bin/python
 # -*- coding: utf-8 -*-
 
 """Dealing with encoding problems."""
diff --git a/patacrep/errors.py b/patacrep/errors.py
index b8e73466..a945a2ee 100644
--- a/patacrep/errors.py
+++ b/patacrep/errors.py
@@ -1,4 +1,3 @@
-#!/usr/bin/env python
 # -*- coding: utf-8 -*-
 
 """Songbook exceptions and errors."""
diff --git a/patacrep/files.py b/patacrep/files.py
old mode 100755
new mode 100644
index fd2229d1..48928a00
--- a/patacrep/files.py
+++ b/patacrep/files.py
@@ -1,7 +1,4 @@
-#!/usr/bin/python
 # -*- coding: utf-8 -*-
-#
-
 """File system utilities."""
 
 from contextlib import contextmanager
diff --git a/patacrep/index.py b/patacrep/index.py
old mode 100755
new mode 100644
index 9c61835f..763d0151
--- a/patacrep/index.py
+++ b/patacrep/index.py
@@ -1,4 +1,3 @@
-#!/usr/bin/python
 # -*- coding: utf-8 -*-
 
 """Manage indexes.
diff --git a/patacrep/plastex.py b/patacrep/plastex.py
index 86a53bb1..c3d126cc 100644
--- a/patacrep/plastex.py
+++ b/patacrep/plastex.py
@@ -1,4 +1,3 @@
-#!/usr/bin/env python
 # -*- coding: utf-8 -*-
 
 """PlasTeX module to process song files."""
diff --git a/patacrep/plastex_patchedbabel.py b/patacrep/plastex_patchedbabel.py
index 39aa2e8f..e20d3086 100644
--- a/patacrep/plastex_patchedbabel.py
+++ b/patacrep/plastex_patchedbabel.py
@@ -1,4 +1,3 @@
-#!/usr/bin/env python
 # -*- coding: utf-8 -*-
 
 r"""Patch pour le paquet Babel de PlasTeX
diff --git a/patacrep/plastex_songs.py b/patacrep/plastex_songs.py
old mode 100755
new mode 100644
index 9bc0eba2..9ad7f523
--- a/patacrep/plastex_songs.py
+++ b/patacrep/plastex_songs.py
@@ -1,4 +1,3 @@
-#!/usr/bin/env python
 # -*- coding: utf-8 -*-
 
 """Module to process song LaTeX environment.
diff --git a/patacrep/songs.py b/patacrep/songs.py
old mode 100755
new mode 100644
index 5f3a7d8c..961d9f37
--- a/patacrep/songs.py
+++ b/patacrep/songs.py
@@ -1,4 +1,3 @@
-#!/usr/bin/env python
 # -*- coding: utf-8 -*-
 
 """Song management."""
diff --git a/patacrep/templates.py b/patacrep/templates.py
old mode 100755
new mode 100644
index 3dc64167..02b14c42
--- a/patacrep/templates.py
+++ b/patacrep/templates.py
@@ -1,4 +1,3 @@
-#!/usr/bin/env python
 # -*- coding: utf-8 -*-
 """Template for .tex generation settings and utilities"""
 
diff --git a/songbook b/songbook
index 2b135a0c..6c82f758 100755
--- a/songbook
+++ b/songbook
@@ -1,6 +1,5 @@
-#!/usr/bin/python
+#! /usr/bin/env python2
 # -*- coding: utf-8 -*-
-#
 
 """Command line tool to compile songbooks using the songbook library."""