diff --git a/ChangeLog b/ChangeLog
index 4be92bf0ca..fad55f2c7b 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Mon Nov 30 16:57:45 2009  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/extmk.rb (command_output): $makeflags are already quoted.
+
 Mon Nov 30 16:54:22 2009  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* configure.in, win32/Makefile.sub (EXECUTABLE_EXTS): moved from
diff --git a/ext/extmk.rb b/ext/extmk.rb
index a18cd38af0..51569c4f97 100644
--- a/ext/extmk.rb
+++ b/ext/extmk.rb
@@ -575,7 +575,7 @@ if $nmake == ?b
 end
 if $command_output
   message = "echo #{message}"
-  cmd = $makeflags.quote.join(' ')
+  cmd = $makeflags.join(' ')
   open($command_output, 'wb') do |f|
     case $command_output
     when /\.sh\z/