diff --git a/doc/bash_completion/make_bash_completion.py b/doc/bash_completion/make_bash_completion.py
index 55cbfce8..e3a535ba 100755
--- a/doc/bash_completion/make_bash_completion.py
+++ b/doc/bash_completion/make_bash_completion.py
@@ -1,8 +1,6 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 # -*- coding: utf-8 -*-
 
-from __future__ import unicode_literals
-from __future__ import print_function
 import subprocess
 import io
 import re