diff --git a/Build.PL b/Build.PL
index 51a2ac2..181c706 100644
--- a/Build.PL
+++ b/Build.PL
@@ -1,3 +1,6 @@
+use strict;
+use warnings;
+
 use Module::Build qw();
 my $builder = Module::Build->new(
     module_name       => 'Sipwise-Base',
diff --git a/t/spelling.t b/t/spelling.t
index 0875fdc..4376871 100644
--- a/t/spelling.t
+++ b/t/spelling.t
@@ -1,3 +1,6 @@
+use strict;
+use warnings;
+
 use Test::More import => [qw(plan)];
 
 plan skip_all => 'Author test' unless $ENV{AUTHOR_TESTING};