diff --git a/ChangeLog b/ChangeLog
index 2effc452a1..1f8afcf7ff 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,7 +1,7 @@
 Thu Feb 14 10:30:41 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* vm_method.c: call method_removed hook on called class, not on
-	  prepending iclass.
+	  prepending iclass.  [ruby-core:52207] [Bug #7843]
 
 Thu Feb 14 10:05:57 2013  Eric Hodel  <drbrain@segment7.net>
 
diff --git a/test/ruby/test_module.rb b/test/ruby/test_module.rb
index 7723bc16be..6fbf3af2e3 100644
--- a/test/ruby/test_module.rb
+++ b/test/ruby/test_module.rb
@@ -1397,7 +1397,7 @@ class TestModule < Test::Unit::TestCase
     c.singleton_class.class_eval do
       define_method(:method_removed) {|id| removed = id}
     end
-    assert_nothing_raised(NoMethodError, NameError) do
+    assert_nothing_raised(NoMethodError, NameError, '[Bug #7843]') do
       c.class_eval do
         remove_method(:foo)
       end