diff --git a/ChangeLog b/ChangeLog
index 3aea7f2c96..c4fd53e3c9 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Sun Aug  9 07:25:07 2009  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/ripper/eventids2.c (token_to_eventid): added
+	  keyword_do_LAMBDA.  [ruby-dev:39049]
+
 Sun Aug  9 02:07:41 2009  Yuki Sonoda (Yugui)  <yugui@yugui.jp>
 
 	* tool/compile_prelude.rb: fixes a regexp pattern for require.
diff --git a/ext/ripper/eventids2.c b/ext/ripper/eventids2.c
index a557a41fa7..8b0d9c3757 100644
--- a/ext/ripper/eventids2.c
+++ b/ext/ripper/eventids2.c
@@ -185,6 +185,7 @@ static const struct token_assoc {
     {keyword__ENCODING__, &ripper_id_kw},
     {keyword_BEGIN,	&ripper_id_kw},
     {keyword_END,	&ripper_id_kw},
+    {keyword_do_LAMBDA,	&ripper_id_kw},
     {tAMPER,		&ripper_id_op},
     {tANDOP,		&ripper_id_op},
     {tAREF,		&ripper_id_op},