diff --git a/perl-Data-Buffer.spec b/perl-Data-Buffer.spec
index cea8a02..2cf422d 100644
--- a/perl-Data-Buffer.spec
+++ b/perl-Data-Buffer.spec
@@ -1,14 +1,25 @@
 Summary:	Read/write buffer class for perl
 Name:		perl-Data-Buffer
 Version:	0.04
-Release:	23%{?dist}
+Release:	24%{?dist}
 License:	GPL+ or Artistic
 Group:		Development/Libraries
 Url:		http://search.cpan.org/dist/Data-Buffer/
 Source0:	http://search.cpan.org/CPAN/authors/id/B/BT/BTROTT/Data-Buffer-%{version}.tar.gz
 BuildRoot:	%{_tmppath}/%{name}-%{version}-%{release}-root-%(id -nu)
 BuildArch:	noarch
+# Module Build
+BuildRequires:	coreutils
+BuildRequires:	findutils
+BuildRequires:	make
+BuildRequires:	perl
 BuildRequires:	perl(ExtUtils::MakeMaker)
+# Module Runtime
+BuildRequires:	perl(strict)
+BuildRequires:	perl(vars)
+# Test Suite
+BuildRequires:	perl(Test)
+# Runtime
 Requires:	perl(:MODULE_COMPAT_%(eval "`perl -V:version`"; echo $version))
 
 %description
@@ -28,7 +39,6 @@ make %{?_smp_mflags}
 rm -rf %{buildroot}
 make pure_install DESTDIR=%{buildroot}
 find %{buildroot} -type f -name .packlist -exec rm -f {} ';'
-find %{buildroot} -depth -type d -exec rmdir {} ';' 2>/dev/null
 %{_fixperms} %{buildroot}
 
 %check
@@ -38,12 +48,16 @@ make test
 rm -rf %{buildroot}
 
 %files
-%defattr(-,root,root,-)
 %doc Changes
 %{perl_vendorlib}/Data/
-%{_mandir}/man3/Data::Buffer.3pm*
+%{_mandir}/man3/Data::Buffer.3*
 
 %changelog
+* Wed Oct 14 2015 Paul Howarth <paul@city-fan.org> - 0.04-24
+- Classify buildreqs by usage
+- Drop %%defattr, redundant since rpm 4.4
+- Don't need to remove empty directories from the buildroot
+
 * Thu Jun 18 2015 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 0.04-23
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_23_Mass_Rebuild