diff --git a/.gitignore b/.gitignore
index 570fbf8..8101f08 100644
--- a/.gitignore
+++ b/.gitignore
@@ -24,3 +24,4 @@ libhammer.pc
 .sconsign.dblite
 *.os
 *.pyc
+*.gem
diff --git a/src/bindings/ruby/README.md b/src/bindings/ruby/README.md
index 480f255..849db21 100644
--- a/src/bindings/ruby/README.md
+++ b/src/bindings/ruby/README.md
@@ -50,7 +50,7 @@ Add hammer to your Gemfile.
 
 Use hammer in your project.
 
-  `require 'hammer'`
+  `require 'hammer-parser'`
 
 ### Building a parser
 
diff --git a/src/bindings/ruby/hammer-parser.gemspec b/src/bindings/ruby/hammer-parser.gemspec
index 9a4a616..158bc26 100644
--- a/src/bindings/ruby/hammer-parser.gemspec
+++ b/src/bindings/ruby/hammer-parser.gemspec
@@ -1,7 +1,7 @@
 #encoding: UTF-8
 Gem::Specification.new do |s|
   s.name          = 'hammer-parser'
-  s.version       = '0.1.0'
+  s.version       = '0.2.0'
   s.summary       = 'Ruby bindings to the hammer parsing library.'
   s.description   = s.summary # TODO: longer description?
   s.authors       = ['Meredith L. Patterson', 'TQ Hirsch', 'Jakob Rath']
@@ -15,7 +15,7 @@ Gem::Specification.new do |s|
     "lib/hammer/internal.rb",
     "lib/hammer/parser.rb",
     "lib/hammer/parser_builder.rb",
-    "lib/hammer.rb",
+    "lib/hammer-parser.rb",
     "lib/minitest/hamer-parser_plugin.rb",
     "test/autogen_test.rb",
     "test/parser_test.rb"
diff --git a/src/bindings/ruby/lib/hammer.rb b/src/bindings/ruby/lib/hammer-parser.rb
similarity index 87%
rename from src/bindings/ruby/lib/hammer.rb
rename to src/bindings/ruby/lib/hammer-parser.rb
index 916a0a5..6622337 100644
--- a/src/bindings/ruby/lib/hammer.rb
+++ b/src/bindings/ruby/lib/hammer-parser.rb
@@ -2,11 +2,6 @@ require 'hammer/internal'
 require 'hammer/parser'
 require 'hammer/parser_builder'
 
-# TODO:
-# Probably need to rename this file to 'hammer-parser.rb', so
-# people can use "require 'hammer-parser'" in their code.
-
-
 # Leave this in for now to be able to play around with HParseResult in irb.
 x = nil
 parser = Hammer::Parser.build {
diff --git a/src/bindings/ruby/lib/hammer/parser.rb b/src/bindings/ruby/lib/hammer/parser.rb
index d1177c5..2f19e15 100644
--- a/src/bindings/ruby/lib/hammer/parser.rb
+++ b/src/bindings/ruby/lib/hammer/parser.rb
@@ -19,8 +19,10 @@ module Hammer
       @dont_gc = dont_gc.dup
     end
 
+    # dont_gc is required to build a fuzzer from the declaration of Hammer::Parser object.
     attr_reader :name
     attr_reader :h_parser
+    attr_reader :dont_gc
 
     # Parse the given data. Returns the parse result if successful, nil otherwise.
     #
diff --git a/src/bindings/ruby/test/autogen_test.rb b/src/bindings/ruby/test/autogen_test.rb
index 0600c0f..2efc6a6 100644
--- a/src/bindings/ruby/test/autogen_test.rb
+++ b/src/bindings/ruby/test/autogen_test.rb
@@ -1,6 +1,6 @@
 require 'bundler/setup'
 require 'minitest/autorun'
-require 'hammer'
+require 'hammer-parser'
 class TestToken < Minitest::Test
   def setup
     super
diff --git a/src/bindings/ruby/test/parser_test.rb b/src/bindings/ruby/test/parser_test.rb
index 6bbdc36..78938fc 100644
--- a/src/bindings/ruby/test/parser_test.rb
+++ b/src/bindings/ruby/test/parser_test.rb
@@ -1,6 +1,6 @@
 # -*- coding: utf-8 -*-
 require 'bundler/setup'
-require 'hammer'
+require 'hammer-parser'
 require 'minitest/autorun'
 
 class ParserTest < Minitest::Test