diff --git a/.rdoc_options b/.rdoc_options
index 910bdbaba5..edf34448ea 100644
--- a/.rdoc_options
+++ b/.rdoc_options
@@ -1,8 +1,3 @@
-exclude:
-  - lib/rdoc/rd/block_parser.ry
-  - lib/rdoc/rd/inline_parser.ry
-  - lib/rdoc/markdown.kpeg
-  - lib/rdoc/markdown/literals.kpeg
 op_dir: _site # for GitHub Pages and should match the config of RDoc task in Rakefile
 title: rdoc Documentation
 main_page: README.rdoc
diff --git a/lib/rdoc/markdown/.document b/lib/rdoc/markdown/.document
new file mode 100644
index 0000000000..41333c6411
--- /dev/null
+++ b/lib/rdoc/markdown/.document
@@ -0,0 +1 @@
+*.rb
diff --git a/lib/rdoc/rd/.document b/lib/rdoc/rd/.document
new file mode 100644
index 0000000000..ce26467ee7
--- /dev/null
+++ b/lib/rdoc/rd/.document
@@ -0,0 +1 @@
+inline.rb