diff --git a/ChangeLog b/ChangeLog
index a9cac4c728..6731679a97 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Tue Sep 20 18:23:04 2005  Tanaka Akira  <akr@m17n.org>
+
+	* eval.c (thread_mark): mark th->last_status.  [ruby-dev:27179]
+
 Tue Sep 20 17:26:42 2005  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
 
 	* test/webrick/test_cgi.rb: set ENV["PATH"] to CGIEnvPath on
diff --git a/eval.c b/eval.c
index 43bed97690..daaf635d2d 100644
--- a/eval.c
+++ b/eval.c
@@ -9867,6 +9867,7 @@ thread_mark(rb_thread_t th)
     rb_gc_mark((VALUE)th->scope);
     rb_gc_mark((VALUE)th->dyna_vars);
     rb_gc_mark(th->errinfo);
+    rb_gc_mark(th->last_status);
     rb_gc_mark(th->last_line);
     rb_gc_mark(th->last_match);
     rb_mark_tbl(th->locals);