diff --git a/perl-Declare-Constraints-Simple.spec b/perl-Declare-Constraints-Simple.spec
index dbf2510..4b0f999 100644
--- a/perl-Declare-Constraints-Simple.spec
+++ b/perl-Declare-Constraints-Simple.spec
@@ -1,21 +1,21 @@
 # Provides/Requires filtering is different from rpm 4.9 onwards
-%global rpm49 0%(rpm --version | perl -p -e 's/^.* (\\d+)\\.(\\d+).*/sprintf("%d.%03d",$1,$2) ge 4.009 ? 1 : 0/e')
+%global rpm49 %(rpm --version | perl -p -e 's/^.* (\\d+)\\.(\\d+).*/sprintf("%d.%03d",$1,$2) ge 4.009 ? 1 : 0/e' 2>/dev/null || echo 0)
 
 Name:		perl-Declare-Constraints-Simple
 Version:	0.03
-Release:	35%{?dist}
+Release:	36%{?dist}
 Summary:	Declarative Validation of Data Structures
 License:	GPL+ or Artistic
 URL:		https://metacpan.org/release/Declare-Constraints-Simple
 Source0:	https://cpan.metacpan.org/authors/id/P/PH/PHAYLON/Declare-Constraints-Simple-%{version}.tar.gz
-Patch0:         Declare-Constraints-Simple-0.03-Fix-building-on-Perl-without-dot-in-INC.patch
+Patch0:		Declare-Constraints-Simple-0.03-Fix-building-on-Perl-without-dot-in-INC.patch
 BuildArch:	noarch
 # Module Build
 BuildRequires:	coreutils
 BuildRequires:	findutils
 BuildRequires:	make
-BuildRequires:	perl-interpreter
 BuildRequires:	perl-generators
+BuildRequires:	perl-interpreter
 # Dependencies of bundled Module::Install
 BuildRequires:	perl(Config)
 BuildRequires:	perl(Cwd)
@@ -69,10 +69,9 @@ perl Makefile.PL INSTALLDIRS=vendor
 make %{?_smp_mflags}
 
 %install
-rm -rf %{buildroot}
 make pure_install DESTDIR=%{buildroot}
-find %{buildroot} -type f -name .packlist -exec rm -f {} \;
-%{_fixperms} %{buildroot}
+find %{buildroot} -type f -name .packlist -delete
+%{_fixperms} -c %{buildroot}
 
 %check
 make test
@@ -95,6 +94,12 @@ make test
 %{_mandir}/man3/Declare::Constraints::Simple::Result.3*
 
 %changelog
+* Tue Jan 29 2019 Paul Howarth <paul@city-fan.org> - 0.03-36
+- Spec tidy-up
+  - Simplify find command using -delete
+  - Drop redundant buildroot cleaning in %%install section
+  - Drop redundant explicit %%clean section
+
 * Fri Jul 13 2018 Fedora Release Engineering <releng@fedoraproject.org> - 0.03-35
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_29_Mass_Rebuild