diff --git a/CHANGELOG.rdoc b/CHANGELOG.rdoc
index ec849f0c6..09c4d2f2a 100644
--- a/CHANGELOG.rdoc
+++ b/CHANGELOG.rdoc
@@ -28,6 +28,7 @@ Coping with third-party bugs:
 * Parse multipart boundary from Content-Type headers containing extra semicolons (jeremy)
 
 Housekeeping:
+* Add development gem dependency on rdoc (jeremy)
 * Refresh Bundler dependencies & setup (jeremy)
 * Remove i18n dependency and last vestiges of activesupport dependency in specs (jeremy)
 * Clarify that Sender is a single address, not an address list (jeremy)
diff --git a/mail.gemspec b/mail.gemspec
index e26e96f6b..f831b942e 100644
--- a/mail.gemspec
+++ b/mail.gemspec
@@ -23,6 +23,7 @@ Gem::Specification.new do |s|
   s.add_development_dependency('bundler', '>= 1.0.3')
   s.add_development_dependency('rake', '> 0.8.7')
   s.add_development_dependency('rspec', '~> 2.12.0')
+  s.add_development_dependency('rdoc')
 
   s.require_path = 'lib'
   s.files = %w(README.md MIT-LICENSE CONTRIBUTING.md CHANGELOG.rdoc Dependencies.txt Gemfile Rakefile TODO.rdoc) + Dir.glob("lib/**/*")