diff --git a/rubygem-test-unit.spec b/rubygem-test-unit.spec
index 965e61b..674c551 100644
--- a/rubygem-test-unit.spec
+++ b/rubygem-test-unit.spec
@@ -1,5 +1,4 @@
 %global	gem_name	test-unit
-%global	rubyabi	1.9.1
 
 # svn repository
 # http://test-unit.rubyforge.org/svn/trunk/
@@ -7,7 +6,7 @@
 Summary:	Improved version of Test::Unit bundled in Ruby 1.8.x
 Name:		rubygem-%{gem_name}
 Version:	2.5.4
-Release:	1%{?dist}
+Release:	2%{?dist}
 Group:		Development/Languages
 # lib/test/unit/diff.rb is under GPLv2 or Ruby or Python
 # lib/test-unit.rb is under LGPLv2+ or Ruby
@@ -16,13 +15,13 @@ License:	(GPLv2 or Ruby) and (GPLv2 or Ruby or Python) and (LGPLv2+ or Ruby)
 URL:		http://rubyforge.org/projects/test-unit/
 
 Source0:	http://rubygems.org/gems/%{gem_name}-%{version}.gem
-BuildRequires:	ruby(abi) = %{rubyabi}
+BuildRequires:	ruby(release)
 BuildRequires:	rubygems
 BuildRequires:	rubygems-devel
 # For %%check
 #BuildRequires:	rubygem(rake)
 #BuildRequires:	rubygem(hoe)
-Requires:	ruby(abi) = %{rubyabi}
+Requires:	ruby(release)
 Requires:	rubygems
 
 BuildArch:	noarch
@@ -61,14 +60,7 @@ popd
 rm -rf tmpunpackdir
 
 %build
-mkdir -p .%{gem_dir}
-gem install \
-	-V \
-	--local \
-	--install-dir .%{gem_dir} \
-	--force \
-	--rdoc \
-	%{gem_name}-%{version}.gem
+%gem_install
 
 #find . -name \*.gem | xargs chmod 0644
 find . -type f | xargs chmod ugo+r
@@ -110,9 +102,12 @@ popd
 %{gem_instdir}/sample/
 %{gem_instdir}/test/
 
-%{gem_dir}/doc/%{gem_name}-%{version}/
+%{gem_docdir}/
 
 %changelog
+* Wed Feb 27 2013 Mamoru TASAKA <mtasaka@fedoraproject.org> - 2.5.4-2
+- Rebuild for ruby 2.0.0
+
 * Sun Feb  3 2013 Mamoru TASAKA <mtasaka@fedoraproject.org> - 2.5.4-1
 - 2.5.4