diff --git a/perl-Image-Math-Constrain.spec b/perl-Image-Math-Constrain.spec
index 7806739..7178eb5 100644
--- a/perl-Image-Math-Constrain.spec
+++ b/perl-Image-Math-Constrain.spec
@@ -9,6 +9,7 @@ BuildArch:      noarch
 # Build
 BuildRequires:  make
 BuildRequires:  perl
+BuildRequires:  perl-generators
 BuildRequires:  perl(Config)
 BuildRequires:  perl(Cwd)
 BuildRequires:  perl(ExtUtils::MakeMaker) >= 6.76