diff --git a/Rakefile b/Rakefile
index a23c8cc..3af7d85 100644
--- a/Rakefile
+++ b/Rakefile
@@ -33,7 +33,7 @@ Hoe.spec PKG_NAME do
   self.changes = paragraphs_of(self.history_file, 0..1).join("\n\n")
   self.description = paragraphs_of(self.readme_file, 2..2).join("\n\n")
 
-  extra_rdoc_files << "Hacking.rdoc"
+  extra_rdoc_files << MANIFEST.grep(/\.rdoc$/)
 
   extra_dev_deps << [ "archive-tar-minitar", "~>0.5.1" ]
   extra_dev_deps << [ "hanna", "~>0.1.2" ]
@@ -121,4 +121,4 @@ task :build_manifest do |t|
 end
 
 desc "Run a full set of integration and unit tests" 
-task :cruise => [:test, :spec]
\ No newline at end of file
+task :cruise => [:test, :spec]