diff --git a/ChangeLog b/ChangeLog
index 4b1168320f..f3e5b9e9fd 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Fri Dec 16 17:18:38 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* README, README.ja: 'make check' is preferable to 'make test'.
+
 Thu Dec 15 23:16:13 2011  CHIKANAGA Tomoyuki  <nagachika00@gmail.com>
 
 	* error.c (builtin_type_name): don't return pointer to the buffer of
diff --git a/README b/README
index 6d61042a43..22ad742f9b 100644
--- a/README
+++ b/README
@@ -83,7 +83,7 @@ This is what you need to do to compile and install Ruby:
 
   5. Run make.
 
-  6. Optionally, run 'make test' to check whether the compiled Ruby
+  6. Optionally, run 'make check' to check whether the compiled Ruby
      interpreter works well.  If you see the message "test succeeded",
      your ruby works as it should (hopefully).
 
diff --git a/README.ja b/README.ja
index 791d12a5de..2955ade996 100644
--- a/README.ja
+++ b/README.ja
@@ -109,7 +109,7 @@ Ruby拡張モジュールについて話し合うruby-extメーリングリス
 
   5. makeを実行してコンパイルする
 
-  6. make testでテストを行う．
+  6. make checkでテストを行う．
 
      「test succeeded」と表示されれば成功です．ただしテスト
      に成功しても完璧だと保証されている訳ではありません．