diff --git a/rubygem-multi_json.spec b/rubygem-multi_json.spec
index 945aaa4..3d2b094 100644
--- a/rubygem-multi_json.spec
+++ b/rubygem-multi_json.spec
@@ -1,20 +1,19 @@
 # Generated from multi_json-1.0.3.gem by gem2rpm -*- rpm-spec -*-
 %global gem_name multi_json
 
-%global rubyabi 1.9.1
 
 Summary: A gem to provide swappable JSON backends
 Name: rubygem-%{gem_name}
 Version: 1.3.6
-Release: 3%{?dist}
+Release: 4%{?dist}
 Group: Development/Languages
 License: MIT
 URL: http://github.com/intridea/multi_json
 Source0: http://rubygems.org/gems/%{gem_name}-%{version}.gem
-Requires: ruby(abi) = %{rubyabi}
+Requires: ruby(release)
 Requires: ruby(rubygems) >= 1.3.6
 Requires: ruby
-BuildRequires: ruby(abi) = %{rubyabi}
+BuildRequires: ruby(release)
 BuildRequires: rubygems-devel >= 1.3.6
 BuildRequires: ruby
 BuildRequires: rubygem(rspec)
@@ -43,9 +42,7 @@ Documentation for %{name}
 
 %prep
 %setup -q -c -T
-mkdir -p .%{gem_dir}
-gem install --local --install-dir .%{gem_dir} \
-            --force %{SOURCE0}
+%gem_install -n %{SOURCE0}
 
 %build
 
@@ -85,6 +82,9 @@ popd
 
 
 %changelog
+* Tue Feb 26 2013 Vít Ondruch <vondruch@redhat.com> - 1.3.6-4
+- Rebuild for https://fedoraproject.org/wiki/Features/Ruby_2.0.0
+
 * Thu Feb 14 2013 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 1.3.6-3
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_19_Mass_Rebuild