diff --git a/check_b2share.py b/check_b2share.py
index b6a6bf6..f5e8fa2 100755
--- a/check_b2share.py
+++ b/check_b2share.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 #
 # This file is part of B2SHARE Nagios monitoring plugin.
 #