diff --git a/perl-Affix-Infix2Postfix.spec b/perl-Affix-Infix2Postfix.spec
index 52ecfeb..4d5646a 100644
--- a/perl-Affix-Infix2Postfix.spec
+++ b/perl-Affix-Infix2Postfix.spec
@@ -9,6 +9,7 @@ BuildArch:      noarch
 # Build
 BuildRequires:  make
 BuildRequires:  perl
+BuildRequires:  perl-generators
 BuildRequires:  perl(ExtUtils::MakeMaker) >= 6.76
 # Runtime
 BuildRequires:  perl(AutoLoader)