diff --git a/perl-Math-ConvexHull-MonotoneChain.spec b/perl-Math-ConvexHull-MonotoneChain.spec
index c453712..5e9119c 100644
--- a/perl-Math-ConvexHull-MonotoneChain.spec
+++ b/perl-Math-ConvexHull-MonotoneChain.spec
@@ -6,6 +6,8 @@ License:        GPL+ or Artistic
 Group:          Development/Libraries
 URL:            http://search.cpan.org/dist/Math-ConvexHull-MonotoneChain/
 Source0:        http://www.cpan.org/authors/id/S/SM/SMUELLER/Math-ConvexHull-MonotoneChain-%{version}.tar.gz
+BuildRequires:  perl-devel
+BuildRequires:  perl-generators
 BuildRequires:  perl(Exporter)
 BuildRequires:  perl(ExtUtils::MakeMaker)
 BuildRequires:  perl(Test::More) >= 0.88