diff --git a/README b/README.rdoc
similarity index 100%
rename from README
rename to README.rdoc
diff --git a/Rakefile b/Rakefile
index d6f3a9aec..8899877b1 100644
--- a/Rakefile
+++ b/Rakefile
@@ -86,9 +86,9 @@ end
 
 desc "Generate RDoc documentation"
 task :rdoc => ["SPEC"] do
-  sh(*%w{rdoc --line-numbers --main README
+  sh(*%w{rdoc --line-numbers --main README.rdoc
               --title 'Rack\ Documentation' --charset utf-8 -U -o doc} +
-              %w{README KNOWN-ISSUES SPEC} +
+              %w{README.rdoc KNOWN-ISSUES SPEC} +
               Dir["lib/**/*.rb"])
 end
 
diff --git a/rack.gemspec b/rack.gemspec
index 7d452819b..38d2e0b38 100644
--- a/rack.gemspec
+++ b/rack.gemspec
@@ -15,11 +15,11 @@ Also see http://rack.rubyforge.org.
 EOF
 
   s.files           = Dir['{bin/*,contrib/*,example/*,lib/**/*,test/**/*}'] +
-                        %w(COPYING KNOWN-ISSUES rack.gemspec Rakefile README SPEC)
+                        %w(COPYING KNOWN-ISSUES rack.gemspec Rakefile README.rdoc SPEC)
   s.bindir          = 'bin'
   s.executables     << 'rackup'
   s.require_path    = 'lib'
-  s.extra_rdoc_files = ['README', 'KNOWN-ISSUES']
+  s.extra_rdoc_files = ['README.rdoc', 'KNOWN-ISSUES']
   s.test_files      = Dir['test/spec_*.rb']
 
   s.author          = 'Christian Neukirchen'