diff --git a/sphinxcontrib/docbook.py b/sphinxcontrib/docbook.py
index efab70e..ac4a450 100644
--- a/sphinxcontrib/docbook.py
+++ b/sphinxcontrib/docbook.py
@@ -1,3 +1,4 @@
+#!/usr/bin/env python
 # Copyright (C) 2013 eNovance SAS <licensing@enovance.com>
 #
 # Author: Cyril Roelandt <cyril.roelandt@enovance.com>
diff --git a/sphinxcontrib/setup.py b/sphinxcontrib/setup.py
index 1424f41..dfe1dd2 100644
--- a/sphinxcontrib/setup.py
+++ b/sphinxcontrib/setup.py
@@ -1,3 +1,5 @@
+#!/usr/bin/env python
+
 from sphinxcontrib.docbook import DocBookBuilder
 
 def setup(app):