diff --git a/ChangeLog b/ChangeLog
index 946524c79f..f2698fc66e 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Fri Mar 26 19:28:03 2010  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* test/ruby/test_hash.rb (test_recursive_key): recursive keys are
+	  permitted now.  [ruby-dev:40735]
+
 Fri Mar 26 12:36:10 2010  Aaron Patterson <aaron@tenderlovemaking.com>
 
 	* lib/yaml/basenode.rb: deprecating YPath methods
diff --git a/test/ruby/test_hash.rb b/test/ruby/test_hash.rb
index 920d933f76..782edc9a0c 100644
--- a/test/ruby/test_hash.rb
+++ b/test/ruby/test_hash.rb
@@ -898,8 +898,10 @@ class TestHash < Test::Unit::TestCase
     assert_nothing_raised { eval("a = 1; {a => a}; a") }
   end
 
-  def test_recursive_check
+  def test_recursive_key
     h = {}
-    assert_raise(ArgumentError) { h[h] = :foo }
+    assert_nothing_raised { h[h] = :foo }
+    h.rehash
+    assert_equal(:foo, h[h])
   end
 end