diff --git a/devscripts/bash-completion.py b/devscripts/bash-completion.py
old mode 100755
new mode 100644
index 7db396a77..237796006
--- a/devscripts/bash-completion.py
+++ b/devscripts/bash-completion.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 from __future__ import unicode_literals
 
 import os