1 files changed, 6 insertions, 1 deletions

diff --git a/doc/.document b/doc/.document
index 03d332367c..8174394f48 100644
--- a/doc/.document
+++ b/doc/.document
@@ -1,7 +1,12 @@
 *.md
 *.rb
-*.rdoc
+[^_]*.rdoc
 contributing
 NEWS
 syntax
 optparse
+rdoc
+regexp
+rjit
+yjit
+ruby