diff --git a/rubygem-multi_json.spec b/rubygem-multi_json.spec
index a000897..3b42d4d 100644
--- a/rubygem-multi_json.spec
+++ b/rubygem-multi_json.spec
@@ -1,30 +1,28 @@
 # Generated from multi_json-1.0.3.gem by gem2rpm -*- rpm-spec -*-
-%global gemname multi_json
+%global gem_name multi_json
 
-%global gemdir %(ruby -rubygems -e 'puts Gem::dir' 2>/dev/null)
-%global geminstdir %{gemdir}/gems/%{gemname}-%{version}
-%global rubyabi 1.8
+%global rubyabi 1.9.1
 
 Summary: A gem to provide swappable JSON backends
-Name: rubygem-%{gemname}
+Name: rubygem-%{gem_name}
 Version: 1.0.3
-Release: 4%{?dist}
+Release: 5%{?dist}
 Group: Development/Languages
 License: MIT
 URL: http://github.com/intridea/multi_json
-Source0: http://rubygems.org/gems/%{gemname}-%{version}.gem
+Source0: http://rubygems.org/gems/%{gem_name}-%{version}.gem
 Requires: ruby(abi) = %{rubyabi}
 Requires: ruby(rubygems) >= 1.3.6
 Requires: ruby
 BuildRequires: ruby(abi) = %{rubyabi}
-BuildRequires: ruby(rubygems) >= 1.3.6
+BuildRequires: rubygems-devel >= 1.3.6
 BuildRequires: ruby
 # Use rspec-core until rspec are not migrated to RSpec 2.x
 BuildRequires: rubygem(rspec-core)
 BuildRequires: rubygem(json)
 BuildRequires: rubygem(json_pure)
 BuildArch: noarch
-Provides: rubygem(%{gemname}) = %{version}
+Provides: rubygem(%{gem_name}) = %{version}
 # OkJson is allowed to be bundled:
 # https://fedorahosted.org/fpc/ticket/113
 Provides: bundled(okjson) = 20110719
@@ -46,22 +44,22 @@ Documentation for %{name}
 
 %prep
 %setup -q -c -T
-mkdir -p .%{gemdir}
-gem install --local --install-dir .%{gemdir} \
+mkdir -p .%{gem_dir}
+gem install --local --install-dir .%{gem_dir} \
             --force %{SOURCE0}
 
 %build
 
 %install
-mkdir -p %{buildroot}%{gemdir}
-cp -a .%{gemdir}/* \
-        %{buildroot}%{gemdir}/
+mkdir -p %{buildroot}%{gem_dir}
+cp -a .%{gem_dir}/* \
+        %{buildroot}%{gem_dir}/
 
 # Remove useless shebang.
-sed -i -e '/^#!\/usr\/bin\/env/d' %{buildroot}%{geminstdir}/Rakefile
+sed -i -e '/^#!\/usr\/bin\/env/d' %{buildroot}%{gem_instdir}/Rakefile
 
 %check
-pushd ./%{geminstdir}
+pushd ./%{gem_instdir}
 # simplecov gem is Ruby 1.9 only and not available in Fedora,
 # so remove its usage
 sed -i '8,+1d' spec/helper.rb
@@ -72,23 +70,26 @@ rspec spec/ | \
 popd
 
 %files
-%dir %{geminstdir}
-%exclude %{geminstdir}/.*
-%exclude %{geminstdir}/Gemfile
-%exclude %{geminstdir}/%{gemname}.gemspec
-%doc %{geminstdir}/LICENSE.md
-%{geminstdir}/lib
-%exclude %{gemdir}/cache/%{gemname}-%{version}.gem
-%{gemdir}/specifications/%{gemname}-%{version}.gemspec
+%dir %{gem_instdir}
+%exclude %{gem_instdir}/.*
+%exclude %{gem_instdir}/Gemfile
+%exclude %{gem_instdir}/%{gem_name}.gemspec
+%doc %{gem_instdir}/LICENSE.md
+%{gem_libdir}
+%exclude %{gem_cache}
+%{gem_spec}
 
 %files doc
-%doc %{gemdir}/doc/%{gemname}-%{version}
-%doc %{geminstdir}/README.md
-%{geminstdir}/Rakefile
-%{geminstdir}/spec
+%doc %{gem_docdir}
+%doc %{gem_instdir}/README.md
+%{gem_instdir}/Rakefile
+%{gem_instdir}/spec
 
 
 %changelog
+* Tue Jan 24 2012 Vít Ondruch <vondruch@redhat.com> - 1.0.3-5
+- Rebuilt for Ruby 1.9.3.
+
 * Sat Jan 14 2012 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 1.0.3-4
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_17_Mass_Rebuild