diff --git a/ChangeLog b/ChangeLog
index 6c89792f24..a40c566912 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Wed Dec  5 16:54:28 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* test/ruby/memory_status.rb: suppress warning.
+	  A patch from NAKAMURA Usaku.
+
 Wed Dec  5 16:06:54 2012  Eric Hodel  <drbrain@segment7.net>
 
 	* lib/rdoc/parser/changelog.rb:  Parse more ChangeLog file variations.
diff --git a/test/ruby/memory_status.rb b/test/ruby/memory_status.rb
index 03f49cb2ae..91a934837b 100644
--- a/test/ruby/memory_status.rb
+++ b/test/ruby/memory_status.rb
@@ -1,3 +1,5 @@
+require_relative "envutil"
+
 module Memory
   keys = []
   vals = []
@@ -18,12 +20,16 @@ module Memory
     begin
       require 'fiddle/import'
     rescue LoadError
-      require 'dl/import'
+      suppress_warning do
+        require 'dl/import'
+      end
     end
     begin
       require 'fiddle/types'
     rescue LoadError
-      require 'dl/types'
+      suppress_warning do
+        require 'dl/types'
+      end
     end
 
     module Win32