diff --git a/perl-DateTime-Format-Builder.spec b/perl-DateTime-Format-Builder.spec
index c1553cd..54fe5a6 100644
--- a/perl-DateTime-Format-Builder.spec
+++ b/perl-DateTime-Format-Builder.spec
@@ -25,6 +25,7 @@ BuildArch: noarch
 Requires:  perl(:MODULE_COMPAT_%(eval "`%{__perl} -V:version`"; echo $version))
 
 ## core
+BuildRequires:  perl-generators
 BuildRequires:  perl(Test::More)
 ## non-core
 BuildRequires:  perl(Module::Build)