diff --git a/bin/plug_ins/Auto_reboot/cp_master b/bin/plug_ins/Auto_reboot/cp_master
index 1a885b5..8dd9e0e 100755
--- a/bin/plug_ins/Auto_reboot/cp_master
+++ b/bin/plug_ins/Auto_reboot/cp_master
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 r"""
 Set the auto_boot policy according to the caller's wishes.