diff --git a/perl-constant.spec b/perl-constant.spec
index cee83b3..fc22023 100644
--- a/perl-constant.spec
+++ b/perl-constant.spec
@@ -12,6 +12,7 @@ Source0:        http://www.cpan.org/authors/id/S/SA/SAPER/constant-%{cpan_versio
 Patch0:         constant-1.33-update.patch
 BuildArch:      noarch
 BuildRequires:  perl
+BuildRequires:  perl-generators
 BuildRequires:  perl(ExtUtils::MakeMaker)
 BuildRequires:  perl(strict)
 # Run-time: