diff --git a/utils/p2o.py b/utils/p2o.py
index <HASH>..<HASH> 100755
--- a/utils/p2o.py
+++ b/utils/p2o.py
@@ -1,4 +1,4 @@
-#!/usr/bin/python3
+#!/usr/bin/env python3
 # -*- coding: utf-8 -*-
 #
 # Perceval2Ocean tool
[utils] Use the 1st interpreter on $PATH

It adds more flexibility and ensures you are using the right
interpreter when using virtual envs.