1 files changed, 1 insertions, 0 deletions

diff --git a/.document b/.document
index 1cb2722327..b18ca80971 100644
--- a/.document
+++ b/.document
@@ -12,6 +12,7 @@ prelude.rb
 rbconfig.rb
 array.rb
 ast.rb
+dir.rb
 gc.rb
 io.rb
 kernel.rb