diff --git a/ChangeLog b/ChangeLog
index 63d024581a..606079cdc5 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+Thu Jan 20 11:39:41 2011  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* test/webrick/utils.rb (TestWEBrick::RubyBin): test CGI does not need
+	  to load rubygems.  if it activated, ruby raises LoadError about
+	  rbconfig.rb.
+
 Thu Jan 20 09:19:42 2011  Aaron Patterson <aaron@tenderlovemaking.com>
 
 	* ext/psych/lib/psych/visitors/json_tree.rb: Fix JSON emit for
diff --git a/test/webrick/utils.rb b/test/webrick/utils.rb
index ebc936cb2c..ef4654cafd 100644
--- a/test/webrick/utils.rb
+++ b/test/webrick/utils.rb
@@ -14,6 +14,7 @@ module TestWEBrick
   end
 
   RubyBin = "\"#{EnvUtil.rubybin}\""
+  RubyBin << " --disable-gems"
   RubyBin << " \"-I#{File.expand_path("../..", File.dirname(__FILE__))}/lib\""
   RubyBin << " \"-I#{File.dirname(EnvUtil.rubybin)}/.ext/common\""
   RubyBin << " \"-I#{File.dirname(EnvUtil.rubybin)}/.ext/#{RUBY_PLATFORM}\""