diff --git a/ChangeLog b/ChangeLog
index 741838fcfd..7010c42f72 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,7 +1,7 @@
 Fri Mar 25 10:53:16 2005  WATANABE Hirofumi  <eban@ruby-lang.org>
 
 	* configure.in (WIN32_LEAN_AND_MEAN): removed because a lot of
-	  troubles.
+	  troubles.  [ruby-list:40721]
 
 Thu Mar 24 23:10:44 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
diff --git a/configure.in b/configure.in
index 3516686d7e..f2b96932f8 100644
--- a/configure.in
+++ b/configure.in
@@ -1305,7 +1305,7 @@ case "$target_os" in
 	    fi
 	    AC_LIBOBJ([win32])
 	    COMMON_LIBS=m
-	    COMMON_MACROS="WIN32_LEAN_AND_MEAN="
+#	    COMMON_MACROS="WIN32_LEAN_AND_MEAN="
 	    COMMON_HEADERS="winsock2.h windows.h"
 	    ;;
 	esac