1 files changed, 4 insertions, 2 deletions
diff --git a/runtests.pl b/runtests.pl
index 09963e84e..52de88e10 100755
--- a/runtests.pl
+++ b/runtests.pl
@@ -1,4 +1,4 @@
-#!/usr/bin/perl -w
+#!/usr/bin/perl
 # This Source Code Form is subject to the terms of the Mozilla Public
 # License, v. 2.0. If a copy of the MPL was not distributed with this
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
@@ -6,9 +6,11 @@
 # This Source Code Form is "Incompatible With Secondary Licenses", as
 # defined by the Mozilla Public License, v. 2.0.
 
-# Make it harder for us to do dangerous things in Perl.
+use 5.10.1;
 use diagnostics;
 use strict;
+use warnings;
+
 use lib qw(lib);
 
 use Test::Harness qw(&runtests $verbose);