Rakefile in getopt-declare-1.20 vs Rakefile in getopt-declare-1.21

@@ -1,18 +1,18 @@
 #!/usr/bin/env ruby
 
 require 'rake/gempackagetask'
 require 'rake/rdoctask'
 
-rdoc_files = ["Declare.rdoc", 'HISTORY.txt']
+rdoc_files = ["Declare.rdoc", 'HISTORY.txt'] + Dir.glob('lib/*/*.rb')
 
 #
 # TASK: Gem specification and creation ('gem')
 #
 spec = Gem::Specification.new do |spec|
   spec.name = "getopt-declare"
-  spec.version = '1.20'
+  spec.version = '1.21'
   spec.author = "Gonzalo Garramuno"
   spec.email = '[e-mail], [e-mail]'
   spec.homepage = 'http://www.rubyforge.org/projects/getoptdeclare/'
   spec.summary = 'Getopt-Declare is a command-line argument parser.'
   spec.require_path = "lib"
@@ -40,10 +40,10 @@
 # TASK: Run rdoc to document code ('rdoc')
 #
 html_dir = 'doc/html'
 library = 'Getopt/Declare'
 Rake::RDocTask.new('rdoc') do |t|
-  t.rdoc_files.include(rdoc_files, 'lib/**/*.rb')
+  t.rdoc_files.include(rdoc_files)
   t.main = 'doc/index.html'  # Main web page
   t.title = "#{library} API documentation"
   t.rdoc_dir = html_dir
 end