diff --git a/rubygem-thin.spec b/rubygem-thin.spec
index 752c472..30afc7f 100644
--- a/rubygem-thin.spec
+++ b/rubygem-thin.spec
@@ -1,10 +1,9 @@
 %global gem_name thin
-%global rubyabi 1.9.1
 
 Summary: A thin and fast web server
 Name: rubygem-%{gem_name}
 Version: 1.3.1
-Release: 5%{?dist}
+Release: 6%{?dist}
 Group: Development/Languages
 License: (GPLv2 or Ruby) and BSD and MIT
 URL: http://code.macournoyer.com/thin/
@@ -15,13 +14,13 @@ Patch1: rubygem-thin-remove-rspec1-require.patch
 Patch2: rubygem-thin-rspec2-null-object.patch
 # https://github.com/macournoyer/thin/issues/76
 Patch3: rubygem-thin-fix-install-spec.patch
-Requires: ruby(abi) = %{rubyabi}
+Requires: ruby(release)
 Requires: ruby(rubygems)
 Requires: rubygem(rack) >= 1.0.0
 Requires: rubygem(eventmachine) >= 0.12.6
 Requires: rubygem(daemons) >= 1.0.9
 Requires: curl
-BuildRequires: ruby(abi) = %{rubyabi}
+BuildRequires: ruby(release)
 BuildRequires: ruby-devel
 BuildRequires: rubygems-devel
 BuildRequires: curl
@@ -50,9 +49,7 @@ Documentation for %{name}
 
 %prep
 %setup -q -c -T
-mkdir -p ./%{gem_dir}
-export CONFIGURE_ARGS="--with-cflags='%{optflags}'"
-gem install --local --install-dir ./%{gem_dir} -V --force %{SOURCE0}
+%gem_install -n %{SOURCE0}
 
 pushd .%{gem_instdir}
 %patch0
@@ -142,6 +139,9 @@ popd
 %{gem_instdir}/spec/rails_app/public/
 
 %changelog
+* Thu Feb 28 2013 Vít Ondruch <vondruch@redhat.com> - 1.3.1-6
+- Rebuild for https://fedoraproject.org/wiki/Features/Ruby_2.0.0
+
 * Thu Feb 14 2013 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 1.3.1-5
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_19_Mass_Rebuild