diff --git a/.gitignore b/.gitignore
index 56c9706e..2491f4e7 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,5 +1,6 @@
-doc/
 pkg/*.tar.gz
 pkg/*.tar.bz2
 pkg/*.zip
 test/rubies
+debian/chruby*
+debian/files
diff --git a/Makefile b/Makefile
index 205c0c82..7deead63 100644
--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,5 @@
 NAME=chruby
-VERSION=0.3.7
+VERSION=0.4.0
 AUTHOR=postmodern
 URL=https://github.com/$(AUTHOR)/$(NAME)
 
@@ -13,12 +13,26 @@ PKG_NAME=$(NAME)-$(VERSION)
 PKG=$(PKG_DIR)/$(PKG_NAME).tar.gz
 SIG=$(PKG).asc
 
+DESTDIR?=/
 PREFIX?=/usr/local
-DOC_DIR=$(PREFIX)/share/doc/$(PKG_NAME)
+INSTALL_PATH=$(DESTDIR)/$(PREFIX)
+DOC_DIR?=$(INSTALL_PATH)/share/doc/$(NAME)
 
 pkg:
 	mkdir $(PKG_DIR)
 
+share/man/man1/chruby.1: doc/man/chruby.1.md
+	kramdown-man <doc/man/chruby.1.md >share/man/man1/chruby.1
+
+share/man/man1/chruby-exec.1: doc/man/chruby-exec.1.md
+	kramdown-man <doc/man/chruby-exec.1.md >share/man/man1/chruby-exec.1
+
+man: share/man/man1/chruby.1
+	git commit -m "Updated the man pages" doc/man/chruby.1.md share/man/man1/chruby.1
+
+man: share/man/man1/chruby-exec.1
+	git commit -m "Updated the man pages" doc/man/chruby-exec.1.md share/man/man1/chruby-exec.1
+	
 download: pkg
 	wget -O $(PKG) $(URL)/archive/v$(VERSION).tar.gz
 
@@ -54,13 +68,13 @@ tag:
 release: tag download sign
 
 install:
-	for dir in $(INSTALL_DIRS); do mkdir -p $(PREFIX)/$$dir; done
-	for file in $(INSTALL_FILES); do cp $$file $(PREFIX)/$$file; done
+	for dir in $(INSTALL_DIRS); do mkdir -p $(INSTALL_PATH)/$$dir; done
+	for file in $(INSTALL_FILES); do cp $$file $(INSTALL_PATH)/$$file; done
 	mkdir -p $(DOC_DIR)
 	cp -r $(DOC_FILES) $(DOC_DIR)/
 
 uninstall:
-	for file in $(INSTALL_FILES); do rm -f $(PREFIX)/$$file; done
+	for file in $(INSTALL_FILES); do rm -f $(INSTALL_PATH)/$$file; done
 	rm -rf $(DOC_DIR)
 
-.PHONY: build download sign verify clean test tag release install uninstall all
+.PHONY: build man download sign verify clean test tag release install uninstall all
diff --git a/README.md b/README.md
index 7dd005fc..220b9602 100644
--- a/README.md
+++ b/README.md
@@ -83,6 +83,32 @@ Chruby provides detailed instructions for installing additional Rubies:
 * [Rubinius](https://github.com/postmodern/chruby/wiki/Rubinius)
 * [MagLev](https://github.com/postmodern/chruby/wiki/MagLev)
 
+#### chruby-install
+
+If you'd like to use chruby-install to install Rubies, just install
+[ruby-install] and add the following after where you have loaded `chruby.sh`:
+
+    source /usr/local/share/chruby/install.sh
+
+You can then use chruby-install to install additional Rubies, making them
+immediately available to chruby.
+
+List Rubies for installation:
+
+    chruby-install
+
+Install the current stable version of a Ruby:
+
+    chruby-install ruby
+
+Install the latest version of a Ruby:
+
+    chruby-install ruby 1.9
+
+Install a Ruby with specific configuration:
+
+    chruby-install ruby 2.0.0-p0 -- --enable-shared --enable-dtrace CFLAGS="-O3"
+
 #### ruby-install
 
 You can also use [ruby-install] to install additional Rubies:
diff --git a/debian/changelog b/debian/changelog
new file mode 100644
index 00000000..bc762f78
--- /dev/null
+++ b/debian/changelog
@@ -0,0 +1,12 @@
+chruby (0.4.0) unstable; urgency=low
+
+  * Package upstream version 0.4.0
+
+ -- Alex Young <alex@blackkettle.org>  Sun, 18 Aug 2013 13:44:36 +0100
+
+
+chruby (0.3.6) unstable; urgency=low
+
+  * Initial package
+
+ -- Alex Young <alex@blackkettle.org>  Mon, 01 Jul 2013 10:20:24 +0100
diff --git a/debian/compat b/debian/compat
new file mode 100644
index 00000000..45a4fb75
--- /dev/null
+++ b/debian/compat
@@ -0,0 +1 @@
+8
diff --git a/debian/control b/debian/control
new file mode 100644
index 00000000..8bf9bc00
--- /dev/null
+++ b/debian/control
@@ -0,0 +1,14 @@
+Source: chruby
+Section: devel
+Priority: extra
+Maintainer: Alex Young <alex@blackkettle.org>
+Build-Depends: debhelper (>= 8.0.0)
+Standards-Version: 3.9.3
+Homepage: https://github.com/postmodern/chruby#readme
+
+Package: chruby
+Architecture: all
+Depends: ${misc:Depends}
+Description: Changes the current Ruby.
+  Updates $PATH, $GEM_HOME and $GEM_PATH to use rubies installed under 
+  /opt/rubies or $HOME/.rubies.
diff --git a/debian/copyright b/debian/copyright
new file mode 100644
index 00000000..0008496e
--- /dev/null
+++ b/debian/copyright
@@ -0,0 +1,24 @@
+Format: http://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
+Upstream-Name: chruby
+Source: https://github.com/postmodern/chruby
+
+Files: *
+Copyright: 2012-2013 Hal Brodigan <postmodern.mod3@gmail.com> 
+License: MIT
+ Permission is hereby granted, free of charge, to any person obtaining a
+ copy of this software and associated documentation files (the "Software"),
+ to deal in the Software without restriction, including without limitation
+ the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ and/or sell copies of the Software, and to permit persons to whom the
+ Software is furnished to do so, subject to the following conditions:
+ .
+ The above copyright notice and this permission notice shall be included
+ in all copies or substantial portions of the Software.
+ .
+ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+ CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 
+ TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 
+ SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/debian/docs b/debian/docs
new file mode 100644
index 00000000..637eee12
--- /dev/null
+++ b/debian/docs
@@ -0,0 +1,4 @@
+LICENSE.txt
+README.md
+ChangeLog.md
+CONTRIBUTING.md
diff --git a/debian/rules b/debian/rules
new file mode 100755
index 00000000..956227c9
--- /dev/null
+++ b/debian/rules
@@ -0,0 +1,17 @@
+#!/usr/bin/make -f
+# -*- makefile -*-
+# Sample debian/rules that uses debhelper.
+# This file was originally written by Joey Hess and Craig Small.
+# As a special exception, when this file is copied by dh-make into a
+# dh-make output file, you may use that output file without restriction.
+# This special exception was added by Craig Small in version 0.37 of dh-make.
+
+# Uncomment this to turn on verbose mode.
+#export DH_VERBOSE=1
+
+override_dh_auto_test-indep:
+
+override_dh_auto_build-indep:
+
+%:
+	PREFIX=/usr dh $@
diff --git a/debian/source/format b/debian/source/format
new file mode 100644
index 00000000..89ae9db8
--- /dev/null
+++ b/debian/source/format
@@ -0,0 +1 @@
+3.0 (native)
diff --git a/doc/man/chruby-exec.1.md b/doc/man/chruby-exec.1.md
new file mode 100644
index 00000000..fa25af93
--- /dev/null
+++ b/doc/man/chruby-exec.1.md
@@ -0,0 +1,76 @@
+# chruby-exec(1) -- Run a command with selected Ruby.
+
+## SYNOPSIS
+
+`chruby-exec` RUBY [RUBYOPTS] -- COMMAND
+
+## ARGUMENTS
+
+*RUBY*
+    Change current Ruby based on fuzzy matching of Ruby by name.
+
+*RUBYOPTS*
+    Additional optional arguments to pass to Ruby.
+
+*COMMAND*
+    Command to run under the selected Ruby.
+
+## OPTIONS
+
+`-h`, `--help`
+
+`-v`, `--version`
+
+## DESCRIPTION
+Run a command with the selected Ruby version by correctly setting the appropriate environment variables.
+
+[https://github.com/postmodern/chruby/blob/master/README.md](https://github.com/postmodern/chruby/blob/master/README.md)
+
+## EXAMPLES
+
+Run the command `gem update` under JRuby:
+    $ chruby-exec jruby -- gem update
+
+##FILES
+
+*/opt/rubies*
+    Primary default Ruby install location.
+    
+*~/.rubies/*
+    Secondary default Ruby install location.
+
+*/etc/profile.d/chruby.sh*
+    Application environment settings for chruby.
+
+*~/.gem/$ruby/$version*
+    Default gem install location.
+
+##ENVIRONMENT
+
+*PATH*
+    Updates the PATH environment variable to include Rubies and RubyGems bin/ directories.
+
+*GEM_HOME*
+    Default repository location for gem installation.
+
+*GEM_PATH*
+    A colon-separated list of gem repository directories.
+    
+*GEM_ROOT*
+
+*RUBY_ROOT*
+
+*RUBY_ENGINE*
+    Name of Ruby implementation.
+
+*RUBY_VERSION*
+    Ruby version number.
+
+*RUBYOPT*
+    Optionally set if additional Ruby options are given.
+
+##AUTHOR
+Postmodern [postmodern.mod3\@gmail.com](mailto:postmodern.mod3\@gmail.com).
+
+##SEE ALSO
+chruby(1), ruby(1), gem(1)
diff --git a/doc/man/chruby-install.1.md b/doc/man/chruby-install.1.md
new file mode 100644
index 00000000..c8b50e24
--- /dev/null
+++ b/doc/man/chruby-install.1.md
@@ -0,0 +1,76 @@
+# chruby-install(1) -- Install the selected Ruby with ruby-install.
+
+## SYNOPSIS
+
+`chruby-install` [OPTIONS] [RUBY [VERSION]] [-- CONFIGURE_OPTS ...]
+
+## ARGUMENTS
+
+*RUBY*
+  Install Ruby by name.
+
+*VERSION*
+	Optionally select Ruby version.
+
+*CONFIGURE_OPTS*
+	Additional optional configure arguments.
+
+## OPTIONS
+
+`-h`, `--help`
+
+`-V`, `--version`
+
+See `man ruby-install` for Ruby installation options.
+
+## DESCRIPTION
+Installs Ruby, JRuby, Rubinius or MagLev with ruby-install.
+
+[https://github.com/postmodern/ruby-install#readme](https://github.com/postmodern/ruby-install#readme)
+
+And then reloads chruby Rubies.
+
+[https://github.com/postmodern/chruby/blob/master/README.md](https://github.com/postmodern/chruby/blob/master/README.md)
+
+## ARGUMENTS
+
+*RUBY*
+	Install Ruby by name.
+
+*VERSION*
+	Optionally select the version of selected Ruby.
+
+*CONFIGURE_OPTS*
+	Additional optional configure arguments.
+
+## EXAMPLES
+
+Install the current stable version of Ruby:
+
+    $ chruby-install ruby
+
+Install a specific version of Ruby:
+
+    $ chruby-install ruby 1.9.3-p395
+
+## FILES
+
+*/usr/local/src*
+	Default root user source directory.
+    
+*~/src*
+	Default non-root user source directory.
+
+*/opt/rubies/$ruby-$version*
+	Default root user installation directory.
+
+*~/.rubies/$ruby-$version*
+	Default non-root user installation directory.
+
+## AUTHOR
+
+Postmodern <postmodern.mod3@gmail.com>
+
+## SEE ALSO
+
+ruby-install(1), chruby(1), chruby-exec(1), ruby(1), gem(1)
diff --git a/doc/man/chruby.1.md b/doc/man/chruby.1.md
new file mode 100644
index 00000000..fb1e7631
--- /dev/null
+++ b/doc/man/chruby.1.md
@@ -0,0 +1,95 @@
+# chruby(1) -- Changes the current Ruby.
+
+## SYNOPSIS
+
+`chruby` [<RUBY|VERSION|system>] [<RUBY_OPTS>]
+
+## ARGUMENTS
+
+*RUBY|VERSION*
+    Change current Ruby based on fuzzy matching of Ruby by name.
+
+*system*
+    Change current Ruby to system Ruby.
+
+*RUBY_OPTS*
+    Additional optional arguments to pass to Ruby.
+
+## OPTIONS
+
+`-h`, `--help`
+
+`-v`, `--version`
+
+## DESCRIPTION
+Changes the current Ruby version by correctly setting the appropriate environment variables.
+
+[https://github.com/postmodern/chruby/blob/master/README.md](https://github.com/postmodern/chruby/blob/master/README.md)
+
+## EXAMPLES
+
+List available Rubies:
+    $ chruby
+       ruby-1.9.3-p362
+       jruby-1.7.2
+       rubinius-2.0.0-rc1
+
+Select a Ruby:
+    $ chruby 1.9.3
+    $ chruby
+     * ruby-1.9.3-p362
+       jruby-1.7.2
+       rubinius-2.0.0-rc1
+
+Switch to JRuby in 1.9 mode:
+    $ chruby jruby --1.9
+
+Switch back to system Ruby:
+    $ chruby system
+
+Switch to an arbitrary Ruby on the fly:
+    $ chruby_use /path/to/ruby
+
+##FILES
+
+*/opt/rubies*
+    Primary default Ruby install location.
+    
+*~/.rubies/*
+    Secondary default Ruby install location.
+
+*/etc/profile.d/chruby.sh*
+    Application environment settings for chruby.
+
+*~/.gem/$ruby/$version*
+    Default gem install location.
+
+##ENVIRONMENT
+
+*PATH*
+    Updates the PATH environment variable to include Rubies and RubyGems bin/ directories.
+
+*GEM_HOME*
+    Default repository location for gem installation.
+
+*GEM_PATH*
+    A colon-separated list of gem repository directories.
+    
+*GEM_ROOT*
+
+*RUBY_ROOT*
+
+*RUBY_ENGINE*
+    Name of Ruby implementation.
+
+*RUBY_VERSION*
+    Ruby version number.
+
+*RUBYOPT*
+    Optionally set if additional Ruby options are given.
+
+##AUTHOR
+Postmodern [postmodern.mod3\@gmail.com](mailto:postmodern.mod3\@gmail.com).
+
+##SEE ALSO
+chruby-exec(1), ruby(1), gem(1)
diff --git a/share/chruby/chruby.sh b/share/chruby/chruby.sh
index 4318b501..ce3aec66 100644
--- a/share/chruby/chruby.sh
+++ b/share/chruby/chruby.sh
@@ -44,6 +44,7 @@ function chruby_use()
 begin; require 'rubygems'; rescue LoadError; end
 puts "export RUBY_ENGINE=#{defined?(RUBY_ENGINE) ? RUBY_ENGINE : 'ruby'};"
 puts "export RUBY_VERSION=#{RUBY_VERSION};"
+puts "export RUBY_PATCHLEVEL=#{RUBY_PATCHLEVEL};"
 puts "export GEM_ROOT=#{Gem.default_dir.inspect};" if defined?(Gem)
 EOF`
 
diff --git a/share/chruby/install.sh b/share/chruby/install.sh
new file mode 100644
index 00000000..4267cf02
--- /dev/null
+++ b/share/chruby/install.sh
@@ -0,0 +1,29 @@
+function chruby_reload()
+{
+	RUBIES=(
+	  `find "$PREFIX"/opt/rubies -mindepth 1 -maxdepth 1 -type d 2>/dev/null`
+	  `find "$HOME"/.rubies -mindepth 1 -maxdepth 1 -type d 2>/dev/null`
+	)
+}
+
+function chruby-install()
+{
+	case "$1" in
+		-h|--help)
+			echo "usage: chruby-install [OPTIONS] [RUBY [VERSION]] [-- CONFIGURE_OPTS ...]"
+			;;
+		-V|--version)
+			chruby --version
+			[[ -n `command -v ruby-install` ]] && ruby-install --version
+			;;
+		*)
+			if [[ -z `command -v ruby-install` ]]; then
+				echo "chruby-install: ruby-install could not be found" >&2
+				return 1
+			fi
+
+			ruby-install $@
+			chruby_reload
+			;;
+	esac
+}
diff --git a/share/man/man1/chruby-exec.1 b/share/man/man1/chruby-exec.1
new file mode 100644
index 00000000..47704d2f
--- /dev/null
+++ b/share/man/man1/chruby-exec.1
@@ -0,0 +1,78 @@
+.TH 
+.BR chruby-exec (1) 
+\-\- Run a command with selected Ruby.
+.SH SYNOPSIS
+.PP
+\fB\fCchruby-exec\fR RUBY [RUBYOPTS] \-\- COMMAND
+.SH ARGUMENTS
+.PP
+\fIRUBY\fP
+    Change current Ruby based on fuzzy matching of Ruby by name.
+.PP
+\fIRUBYOPTS\fP
+    Additional optional arguements to pass to Ruby.
+.PP
+\fICOMMAND\fP
+    Command to run under the selected Ruby.
+.SH OPTIONS
+.PP
+\fB\fC-h\fR, \fB\fC--help\fR
+.PP
+\fB\fC-v\fR, \fB\fC--version\fR
+.SH DESCRIPTION
+.PP
+Run a command with the selected Ruby version by correctly setting the appropriate environment variables.
+.PP
+https://github.com/postmodern/chruby/blob/master/README.md
+.UR https://github.com/postmodern/chruby/blob/master/README.md
+.UE
+.SH EXAMPLES
+.PP
+Run the command \fB\fCgem update\fR under JRuby:
+    $ chruby\-exec jruby \-\- gem update
+.SH FILES
+.PP
+\fI/opt/rubies\fP
+    Primary default Ruby install location.
+.PP
+\fI~/.rubies/\fP
+    Secondary default Ruby install location.
+.PP
+\fI/etc/profile.d/chruby.sh\fP
+    Application environment settings for chruby.
+.PP
+\fI~/.gem/$ruby/$version\fP
+    Default gem install location.
+.SH ENVIRONMENT
+.PP
+\fIPATH\fP
+    Updates the PATH environment variable to include Rubies and RubyGems bin/ directories.
+.PP
+\fIGEM_HOME\fP
+    Default repository location for gem installation.
+.PP
+\fIGEM_PATH\fP
+    A colon\-separated list of gem repository directories.
+.PP
+\fIGEM_ROOT\fP
+.PP
+\fIRUBY_ROOT\fP
+.PP
+\fIRUBY_ENGINE\fP
+    Name of Ruby implementation.
+.PP
+\fIRUBY_VERSION\fP
+    Ruby version number.
+.PP
+\fIRUBYOPT\fP
+    Optionally set if additional Ruby options are given.
+.SH AUTHOR
+.PP
+Postmodern postmodern.mod3\@gmail.com
+.MT postmodern.mod3@gmail.com
+.ME .
+.SH SEE ALSO
+.PP
+.BR chruby (1), 
+.BR ruby (1), 
+.BR gem (1)
\ No newline at end of file
diff --git a/share/man/man1/chruby.1 b/share/man/man1/chruby.1
new file mode 100644
index 00000000..ca52536a
--- /dev/null
+++ b/share/man/man1/chruby.1
@@ -0,0 +1,94 @@
+.TH 
+.BR chruby (1) 
+\-\- Changes the current Ruby.
+.SH SYNOPSIS
+.PP
+\fB\fCchruby\fR [<RUBY|VERSION|system>] [<RUBY_OPTS>]
+.SH ARGUMENTS
+.PP
+\fIRUBY|VERSION\fP
+    Change current Ruby based on fuzzy matching of Ruby by name.
+.PP
+\fIsystem\fP
+    Change current Ruby to system Ruby.
+.PP
+\fIRUBY_OPTS\fP
+    Additional optional arguements to pass to Ruby.
+.SH OPTIONS
+.PP
+\fB\fC-h\fR, \fB\fC--help\fR
+.SH DESCRIPTION
+.PP
+Changes the current Ruby version by correctly setting the appropriate environment variables.
+.PP
+https://github.com/postmodern/chruby/blob/master/README.md
+.UR https://github.com/postmodern/chruby/blob/master/README.md
+.UE
+.SH EXAMPLES
+.PP
+List available Rubies:
+    $ chruby
+       ruby\-1.9.3\-p362
+       jruby\-1.7.2
+       rubinius\-2.0.0\-rc1
+.PP
+Select a Ruby:
+    $ chruby 1.9.3
+    $ chruby
+     * ruby\-1.9.3\-p362
+       jruby\-1.7.2
+       rubinius\-2.0.0\-rc1
+.PP
+Switch to JRuby in 1.9 mode:
+    $ chruby jruby \-\-1.9
+.PP
+Switch back to system Ruby:
+    $ chruby system
+.PP
+Switch to an arbitrary Ruby on the fly:
+    $ chruby_use /path/to/ruby
+.SH FILES
+.PP
+\fI/opt/rubies\fP
+    Primary default Ruby install location.
+.PP
+\fI~/.rubies/\fP
+    Secondary default Ruby install location.
+.PP
+\fI/etc/profile.d/chruby.sh\fP
+    Application environment settings for chruby.
+.PP
+\fI~/.gem/$ruby/$version\fP
+    Default gem install location.
+.SH ENVIRONMENT
+.PP
+\fIPATH\fP
+    Updates the PATH environment variable to include Rubies and RubyGems bin/ directories.
+.PP
+\fIGEM_HOME\fP
+    Default repository location for gem installation.
+.PP
+\fIGEM_PATH\fP
+    A colon\-separated list of gem repository directories.
+.PP
+\fIGEM_ROOT\fP
+.PP
+\fIRUBY_ROOT\fP
+.PP
+\fIRUBY_ENGINE\fP
+    Name of Ruby implementation.
+.PP
+\fIRUBY_VERSION\fP
+    Ruby version number.
+.PP
+\fIRUBYOPT\fP
+    Optionally set if additional Ruby options are given.
+.SH AUTHOR
+.PP
+Postmodern postmodern.mod3\@gmail.com
+.MT postmodern.mod3@gmail.com
+.ME .
+.SH SEE ALSO
+.PP
+.BR ruby (1), 
+.BR gem (1)
\ No newline at end of file
diff --git a/test/chruby_install.sh b/test/chruby_install.sh
new file mode 100755
index 00000000..f7fcfbff
--- /dev/null
+++ b/test/chruby_install.sh
@@ -0,0 +1,10 @@
+. ./share/chruby/install.sh
+. ./test/helper.sh
+
+test_chruby_install_version()
+{
+	assertTrue "did not print the chruby version" \
+		   '[[ `chruby-install --version` == *$CHRUBY_VERSION* ]]'
+}
+
+SHUNIT_PARENT=$0 . $SHUNIT2
diff --git a/test/chruby_reload.sh b/test/chruby_reload.sh
new file mode 100755
index 00000000..3bdfc777
--- /dev/null
+++ b/test/chruby_reload.sh
@@ -0,0 +1,17 @@
+. ./share/chruby/install.sh
+. ./test/helper.sh
+
+test_chruby_reload()
+{
+	local new_ruby="$HOME/.rubies/newly_installed_ruby"
+	mkdir -p "$new_ruby"
+
+	chruby_reload
+
+	assertTrue "did not add the new ruby dir to RUBIES" \
+	           '[[ "${RUBIES[*]}" == *$new_ruby* ]]'
+
+	rmdir "$new_ruby"
+}
+
+SHUNIT_PARENT=$0 . $SHUNIT2
diff --git a/test/chruby_use_test.sh b/test/chruby_use_test.sh
index 7e2c8ead..01d66e48 100755
--- a/test/chruby_use_test.sh
+++ b/test/chruby_use_test.sh
@@ -12,6 +12,7 @@ test_chruby_use()
 	assertEquals "invalid RUBY_ROOT"    "$TEST_RUBY_ROOT" "$RUBY_ROOT"
 	assertEquals "invalid RUBY_ENGINE"  "$TEST_RUBY_ENGINE" "$RUBY_ENGINE"
 	assertEquals "invalid RUBY_VERSION" "$TEST_RUBY_VERSION" "$RUBY_VERSION"
+	assertEquals "invalid RUBY_PATCHLEVEL" "$TEST_RUBY_PATCHLEVEL" "$RUBY_PATCHLEVEL"
 	assertEquals "invalid GEM_ROOT"     "$TEST_RUBY_ROOT/lib/ruby/gems/$TEST_RUBY_API" "$GEM_ROOT"
 	assertEquals "invalid GEM_HOME"     "$TEST_GEM_HOME" "$GEM_HOME"
 	assertEquals "invalid GEM_PATH"     "$GEM_HOME:$GEM_ROOT" "$GEM_PATH"