diff --git a/snippets/test_diff.py b/snippets/test_diff.py
old mode 100644
new mode 100755
index c70160f..5011c2e
--- a/snippets/test_diff.py
+++ b/snippets/test_diff.py
@@ -1,3 +1,5 @@
+#!/usr/bin/env python3
+
 from birdvisu import maps
 from pprint import pprint
 import sys
diff --git a/snippets/test_ospffile.py b/snippets/test_ospffile.py
old mode 100644
new mode 100755
index d5be411..f44f7c3
--- a/snippets/test_ospffile.py
+++ b/snippets/test_ospffile.py
@@ -1,4 +1,4 @@
-#!/bin/python3
+#!/usr/bin/env python3
 
 from birdvisu import ospffile
 from pprint import pprint