diff --git a/rubygem-tzinfo.spec b/rubygem-tzinfo.spec
index a8e23df..0081aad 100644
--- a/rubygem-tzinfo.spec
+++ b/rubygem-tzinfo.spec
@@ -1,27 +1,26 @@
 # Generated from tzinfo-0.3.26.gem by gem2rpm -*- rpm-spec -*-
-%global gemname tzinfo
+%global gem_name tzinfo
 
-%global gemdir %(ruby -rubygems -e 'puts Gem::dir' 2>/dev/null)
-%global geminstdir %{gemdir}/gems/%{gemname}-%{version}
 %global download_path http://rubygems.org/downloads/
-%global rubyabi 1.8
+%global rubyabi 1.9.1
 
 Summary: Daylight-savings aware timezone library
-Name: rubygem-%{gemname}
+Name: rubygem-%{gem_name}
 Version: 0.3.30
-Release: 2%{?dist}
+Release: 3%{?dist}
 Group: Development/Languages
 License: MIT
 URL: http://tzinfo.rubyforge.org/
-Source0: %{download_path}%{gemname}-%{version}.gem
+Source0: %{download_path}%{gem_name}-%{version}.gem
 Requires: ruby(abi) = %{rubyabi}
 Requires: ruby(rubygems)
 Requires: ruby
-BuildRequires: ruby(rubygems)
+BuildRequires: rubygems-devel
 BuildRequires: ruby(abi) = %{rubyabi}
 BuildRequires: ruby
+BuildRequires: rubygem(minitest)
 BuildArch: noarch
-Provides: rubygem(%{gemname}) = %{version}
+Provides: rubygem(%{gem_name}) = %{version}
 
 %description
 TZInfo is a Ruby library that uses the standard tz (Olson) database to provide
@@ -38,37 +37,40 @@ This package contains 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}/
 
 %check
-pushd .%{geminstdir}
+pushd .%{gem_instdir}
 testrb test/ts_all.rb
 popd
 
 %files
-%dir %{geminstdir}
-%doc %{geminstdir}/LICENSE
-%{geminstdir}/lib
-%{gemdir}/cache/%{gemname}-%{version}.gem
-%{gemdir}/specifications/%{gemname}-%{version}.gemspec
+%dir %{gem_instdir}
+%doc %{gem_instdir}/LICENSE
+%{gem_libdir}
+%{gem_cache}
+%{gem_spec}
 
 %files doc
-%doc %{geminstdir}/CHANGES
-%doc %{geminstdir}/README
-%{geminstdir}/Rakefile
-%{geminstdir}/test
-%{gemdir}/doc/%{gemname}-%{version}
+%doc %{gem_instdir}/CHANGES
+%doc %{gem_instdir}/README
+%{gem_instdir}/Rakefile
+%{gem_instdir}/test
+%{gem_docdir}
 
 %changelog
+* Thu Jan 19 2012 Vít Ondruch <vondruch@redhat.com> - 0.3.30-3
+- Rebuilt for Ruby 1.9.3.
+
 * Sat Jan 14 2012 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 0.3.30-2
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_17_Mass_Rebuild