diff --git a/ChangeLog b/ChangeLog
index e69b7e5ba9..a65820a404 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Mon Oct  6 15:22:08 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* gc.c (gc_mark_children): ignores T_ZOMBIE.
+
 Mon Oct  6 12:45:20 2008  Yukihiro Matsumoto  <matz@ruby-lang.org>
 
 	* test/ruby/test_module.rb (TestModule#_wrap_assertion): add
diff --git a/gc.c b/gc.c
index bbbac05320..c467cb1d62 100644
--- a/gc.c
+++ b/gc.c
@@ -1517,6 +1517,7 @@ gc_mark_children(rb_objspace_t *objspace, VALUE ptr, int lev)
 
       case T_FLOAT:
       case T_BIGNUM:
+      case T_ZOMBIE:
 	break;
 
       case T_MATCH: