diff --git a/lib/Data/Validate/Sanctions.pm b/lib/Data/Validate/Sanctions.pm
index 6e4f928..ad51ced 100644
--- a/lib/Data/Validate/Sanctions.pm
+++ b/lib/Data/Validate/Sanctions.pm
@@ -1,6 +1,7 @@
 package Data::Validate::Sanctions;
 
 use strict;
+use warnings;
 our $VERSION = '0.05';
 
 require Exporter;