diff --git a/libdmtx.spec b/libdmtx.spec
index 781a797..63d9fc7 100644
--- a/libdmtx.spec
+++ b/libdmtx.spec
@@ -12,7 +12,6 @@ URL:            http://www.libdmtx.org/
 Source0:        http://downloads.sourceforge.net/%{name}/%{name}-%{version}.tar.bz2
 Patch0:         %{name}-0.7.2-php54.patch
 Patch1:         %{name}-0.7.2-ruby19.patch
-BuildRoot:      %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
 
 BuildRequires:  ImageMagick-devel
 # required for tests
@@ -135,7 +134,6 @@ popd
 
 
 %install
-rm -rf $RPM_BUILD_ROOT
 make install DESTDIR=$RPM_BUILD_ROOT
 find $RPM_BUILD_ROOT -name '*.la' -exec rm -f {} ';'
 
@@ -167,22 +165,16 @@ done
 popd
 
 
-%clean
-rm -rf $RPM_BUILD_ROOT
-
-
 %post -p /sbin/ldconfig
 
 %postun -p /sbin/ldconfig
 
 
 %files
-%defattr(-,root,root,-)
 %doc AUTHORS COPYING.LESSER ChangeLog KNOWNBUG NEWS README README.linux TODO
 %{_libdir}/%{name}.so.*
 
 %files devel
-%defattr(-,root,root,-)
 %doc
 %{_includedir}/*
 %{_libdir}/%{name}.so
@@ -190,22 +182,18 @@ rm -rf $RPM_BUILD_ROOT
 %{_mandir}/man3/%{name}.3*
 
 %files utils
-%defattr(-,root,root,-)
 %{_bindir}/dmtx*
 %{_mandir}/man1/dmtx*.1*
 
 %files -n php-libdmtx
-%defattr(-,root,root,-)
 %doc COPYING wrapper/php/README
 %{_libdir}/php/modules/*.so
 
 %files -n python-libdmtx
-%defattr(-,root,root,-)
 %doc wrapper/python/README
 %{python_sitearch}/*
 
 %files -n ruby-libdmtx
-%defattr(-,root,root,-)
 %doc wrapper/ruby/README
 %{ruby_vendorarchdir}/*.so