diff --git a/ChangeLog b/ChangeLog
index 758687ebc7..2df65c8fc1 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Tue Sep 27 03:50:19 2011  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
+
+	* test/rexml/test_sax.rb: add require 'rexml/document'.
+
 Tue Sep 27 03:32:27 2011  Ayumu AIZAWA  <ayumu.aizawa@gmail.com>
 
 	* test/psych/test_yamldbm.rb: fix #setup and #terdown.
diff --git a/test/rexml/test_sax.rb b/test/rexml/test_sax.rb
index f5d7fb44ce..8873e1703d 100644
--- a/test/rexml/test_sax.rb
+++ b/test/rexml/test_sax.rb
@@ -1,6 +1,7 @@
 require "rexml_test_utils"
 require 'rexml/sax2listener'
 require 'rexml/parsers/sax2parser'
+require 'rexml/document'
 
 class SAX2Tester < Test::Unit::TestCase
   include REXMLTestUtils