diff --git a/cdbs.spec b/cdbs.spec
index 70f00a4..b8cc523 100644
--- a/cdbs.spec
+++ b/cdbs.spec
@@ -10,6 +10,7 @@ Source0:        http://ftp.de.debian.org/debian/pool/main/c/%{name}/%{name}_%{ve
 
 # waf-unpack python3 fixes
 Patch0:         cdbs_py3.patch
+BuildRequires:         perl-generators
 
 %description
 This package contains the Common Debian Build System, an abstract build system