diff --git a/lib/gen_robot_print.py b/lib/gen_robot_print.py
index 7dd1384..fb958e0 100755
--- a/lib/gen_robot_print.py
+++ b/lib/gen_robot_print.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 r"""
 This file contains functions useful for printing to stdout from robot programs.