diff --git a/main.pm b/main.pm
index 7134c7f..8b29f42 100644
--- a/main.pm
+++ b/main.pm
@@ -2,6 +2,8 @@
 # SPDX-License-Identifier: GPL-2.0-or-later
 
 use strict;
+use warnings;
+
 use testapi;
 use autotest;
 
diff --git a/tests/boot.pm b/tests/boot.pm
index 45ec6b0..7b4f0e2 100644
--- a/tests/boot.pm
+++ b/tests/boot.pm
@@ -1,8 +1,8 @@
 # Copyright 2014-2018 SUSE LLC
 # SPDX-License-Identifier: GPL-2.0-or-later
 
-use base 'basetest';
-use strict;
+use Mojo::Base "basetest";
+
 use testapi;
 
 sub run {