diff --git a/devel/ruby-msgpack/DESCR b/devel/ruby-msgpack/DESCR
new file mode 100644
index 000000000000..1f2b58d5c8d1
--- /dev/null
+++ b/devel/ruby-msgpack/DESCR
@@ -0,0 +1,5 @@
+MessagePack is a binary-based efficient object serialization library.  It
+enables to exchange structured objects between many languages like JSON.  But
+unlike JSON, it is very fast and small.}
+
+This package is MessagePack implementation for Ruby.
diff --git a/devel/ruby-msgpack/Makefile b/devel/ruby-msgpack/Makefile
new file mode 100644
index 000000000000..8357cb859165
--- /dev/null
+++ b/devel/ruby-msgpack/Makefile
@@ -0,0 +1,12 @@
+# $NetBSD: Makefile,v 1.1 2013/10/01 10:29:53 obache Exp $
+
+DISTNAME=	msgpack-0.5.6
+CATEGORIES=	devel
+
+MAINTAINER=	obache@NetBSD.org
+HOMEPAGE=	http://msgpack.org/
+COMMENT=	MessagePack implementation for Ruby
+LICENSE=	apache-2.0
+
+.include "../../lang/ruby/gem.mk"
+.include "../../mk/bsd.pkg.mk"
diff --git a/devel/ruby-msgpack/PLIST b/devel/ruby-msgpack/PLIST
new file mode 100644
index 000000000000..07a72c6131af
--- /dev/null
+++ b/devel/ruby-msgpack/PLIST
@@ -0,0 +1,51 @@
+@comment $NetBSD: PLIST,v 1.1 2013/10/01 10:29:53 obache Exp $
+${GEM_HOME}/cache/${GEM_NAME}.gem
+${GEM_LIBDIR}/.gitignore
+${GEM_LIBDIR}/ChangeLog
+${GEM_LIBDIR}/Gemfile
+${GEM_LIBDIR}/README.rdoc
+${GEM_LIBDIR}/Rakefile
+${GEM_LIBDIR}/doclib/msgpack.rb
+${GEM_LIBDIR}/doclib/msgpack/buffer.rb
+${GEM_LIBDIR}/doclib/msgpack/core_ext.rb
+${GEM_LIBDIR}/doclib/msgpack/error.rb
+${GEM_LIBDIR}/doclib/msgpack/packer.rb
+${GEM_LIBDIR}/doclib/msgpack/unpacker.rb
+${GEM_LIBDIR}/ext/msgpack/buffer.c
+${GEM_LIBDIR}/ext/msgpack/buffer.h
+${GEM_LIBDIR}/ext/msgpack/buffer_class.c
+${GEM_LIBDIR}/ext/msgpack/buffer_class.h
+${GEM_LIBDIR}/ext/msgpack/compat.h
+${GEM_LIBDIR}/ext/msgpack/core_ext.c
+${GEM_LIBDIR}/ext/msgpack/core_ext.h
+${GEM_LIBDIR}/ext/msgpack/extconf.rb
+${GEM_LIBDIR}/ext/msgpack/packer.c
+${GEM_LIBDIR}/ext/msgpack/packer.h
+${GEM_LIBDIR}/ext/msgpack/packer_class.c
+${GEM_LIBDIR}/ext/msgpack/packer_class.h
+${GEM_LIBDIR}/ext/msgpack/rbinit.c
+${GEM_LIBDIR}/ext/msgpack/rmem.c
+${GEM_LIBDIR}/ext/msgpack/rmem.h
+${GEM_LIBDIR}/ext/msgpack/sysdep.h
+${GEM_LIBDIR}/ext/msgpack/sysdep_endian.h
+${GEM_LIBDIR}/ext/msgpack/sysdep_types.h
+${GEM_LIBDIR}/ext/msgpack/unpacker.c
+${GEM_LIBDIR}/ext/msgpack/unpacker.h
+${GEM_LIBDIR}/ext/msgpack/unpacker_class.c
+${GEM_LIBDIR}/ext/msgpack/unpacker_class.h
+${GEM_LIBDIR}/lib/msgpack.rb
+${GEM_LIBDIR}/lib/msgpack/msgpack.${RUBY_DLEXT}
+${GEM_LIBDIR}/lib/msgpack/version.rb
+${GEM_LIBDIR}/msgpack.gemspec
+${GEM_LIBDIR}/spec/buffer_io_spec.rb
+${GEM_LIBDIR}/spec/buffer_spec.rb
+${GEM_LIBDIR}/spec/cases.json
+${GEM_LIBDIR}/spec/cases.msg
+${GEM_LIBDIR}/spec/cases_compact.msg
+${GEM_LIBDIR}/spec/cases_spec.rb
+${GEM_LIBDIR}/spec/format_spec.rb
+${GEM_LIBDIR}/spec/packer_spec.rb
+${GEM_LIBDIR}/spec/random_compat.rb
+${GEM_LIBDIR}/spec/spec_helper.rb
+${GEM_LIBDIR}/spec/unpacker_spec.rb
+${GEM_HOME}/specifications/${GEM_NAME}.gemspec
diff --git a/devel/ruby-msgpack/distinfo b/devel/ruby-msgpack/distinfo
new file mode 100644
index 000000000000..90e18e932d3e
--- /dev/null
+++ b/devel/ruby-msgpack/distinfo
@@ -0,0 +1,5 @@
+$NetBSD: distinfo,v 1.1 2013/10/01 10:29:53 obache Exp $
+
+SHA1 (msgpack-0.5.6.gem) = e5d53fd6df421bc804d01e92214dd54d648a4d1d
+RMD160 (msgpack-0.5.6.gem) = 961dacb1080f58a5106ad242b1bb96e6f76e6034
+Size (msgpack-0.5.6.gem) = 36864 bytes