diff --git a/perl-CSS-Minifier.spec b/perl-CSS-Minifier.spec
index d74b480..48af78a 100644
--- a/perl-CSS-Minifier.spec
+++ b/perl-CSS-Minifier.spec
@@ -10,6 +10,7 @@ Url:        http://search.cpan.org/dist/CSS-Minifier
 Requires:   perl(:MODULE_COMPAT_%(eval "`%{__perl} -V:version`"; echo $version))
 BuildArch:  noarch
 
+BuildRequires: perl-generators
 BuildRequires: perl(ExtUtils::MakeMaker)
 # tests
 BuildRequires: perl(Test::More)