1 files changed, 1 insertions, 0 deletions

diff --git a/.document b/.document
index 64c56be7ee..c0c9cded79 100644
--- a/.document
+++ b/.document
@@ -12,6 +12,7 @@ prelude.rb
 rbconfig.rb
 
 trace_point.rb
+ast.rb
 
 # the lib/ directory (which has its own .document file)
 lib