diff --git a/graphics/ruby-RMagick/Makefile b/graphics/ruby-RMagick/Makefile
index b047e623be0b..c6449a4b630d 100644
--- a/graphics/ruby-RMagick/Makefile
+++ b/graphics/ruby-RMagick/Makefile
@@ -1,7 +1,6 @@
-# $NetBSD: Makefile,v 1.72 2010/06/13 22:44:43 wiz Exp $
+# $NetBSD: Makefile,v 1.73 2010/09/10 06:42:52 taca Exp $
 
-DISTNAME=	rmagick-2.12.2
-PKGREVISION=	4
+DISTNAME=	rmagick-2.13.1
 PKGNAME=	${RUBY_PKGPREFIX}-${DISTNAME:S/rmagick/RMagick/}
 CATEGORIES=	graphics
 
@@ -10,9 +9,7 @@ HOMEPAGE=	http://rmagick.rubyforge.org/
 COMMENT=	Ruby binding to ImageMagick
 LICENSE=	mit
 
-GEM_BUILD=	gemspec
-
-.include "../../misc/rubygems/rubygem.mk"
+.include "../../lang/ruby/gem.mk"
 
 BUILDLINK_API_DEPENDS.ImageMagick+=	ImageMagick>=6.3.5.10
 
diff --git a/graphics/ruby-RMagick/PLIST b/graphics/ruby-RMagick/PLIST
index a578f3b5ca7e..abaf9723f3f3 100644
--- a/graphics/ruby-RMagick/PLIST
+++ b/graphics/ruby-RMagick/PLIST
@@ -1,7 +1,8 @@
-@comment $NetBSD: PLIST,v 1.19 2009/06/14 20:05:43 joerg Exp $
-${GEM_HOME}/cache/rmagick-${PKGVERSION}.gem
+@comment $NetBSD: PLIST,v 1.20 2010/09/10 06:42:52 taca Exp $
+${GEM_HOME}/cache/${GEM_NAME}.gem
 ${GEM_LIBDIR}/.require_paths
 ${GEM_LIBDIR}/ChangeLog
+${GEM_LIBDIR}/Doxyfile
 ${GEM_LIBDIR}/README-Mac-OSX.txt
 ${GEM_LIBDIR}/README.html
 ${GEM_LIBDIR}/build_tarball.rake
@@ -356,4 +357,4 @@ ${GEM_LIBDIR}/post-setup.rb
 ${GEM_LIBDIR}/rmagick.gemspec
 ${GEM_LIBDIR}/setup.rb
 ${GEM_LIBDIR}/uninstall.rb
-${GEM_HOME}/specifications/rmagick-${PKGVERSION}.gemspec
+${GEM_HOME}/specifications/${GEM_NAME}.gemspec
diff --git a/graphics/ruby-RMagick/distinfo b/graphics/ruby-RMagick/distinfo
index 2f16a4157722..2ffd05bf703f 100644
--- a/graphics/ruby-RMagick/distinfo
+++ b/graphics/ruby-RMagick/distinfo
@@ -1,5 +1,5 @@
-$NetBSD: distinfo,v 1.47 2009/10/12 02:23:05 obache Exp $
+$NetBSD: distinfo,v 1.48 2010/09/10 06:42:52 taca Exp $
 
-SHA1 (rmagick-2.12.2.gem) = fb8e05b2decd4508c17f4c7b4922628dcf2c2140
-RMD160 (rmagick-2.12.2.gem) = 3cd262d4bf5818ce9a395ecf1c5ee355612f5c32
-Size (rmagick-2.12.2.gem) = 1268224 bytes
+SHA1 (rmagick-2.13.1.gem) = 570ea53bc44a1e4e149ddb53446e5f6746ed9bed
+RMD160 (rmagick-2.13.1.gem) = ef2943cd5aa5b21f782fe3234a965a365a387425
+Size (rmagick-2.13.1.gem) = 1300992 bytes