diff --git a/docs/conf.py b/docs/conf.py
index 571854e3b..68e814038 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -1,3 +1,4 @@
+#!/usr/bin/env python3
 # -*- coding: utf-8 -*-
 #
 # Configuration file for the Sphinx documentation builder.