diff --git a/builder/test/tests_clever.py b/builder/test/tests_clever.py
index 8db8b6b0..ffe251cc 100755
--- a/builder/test/tests_clever.py
+++ b/builder/test/tests_clever.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 # test backwards compatibility