diff --git a/Build.PL b/Build.PL
index efa527e..f4bfc3e 100644
--- a/Build.PL
+++ b/Build.PL
@@ -8,7 +8,7 @@ my $build = Simba::Build->new
 	module_name 	=> 'Simba',
 	license		=> 'perl',
 	requires	=> {
-				#Readonly => 0,
+				'Readonly'     => 0,
 				'Digest::SHA1' => 0,
 			   },
 	script_files	=> [