diff --git a/ChangeLog b/ChangeLog
index def8e56ce..9ab5393c4 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2009-03-13  Tatsuhiro Tsujikawa  <t-tujikawa@users.sourceforge.net>
+
+	Changed the default value of --http-auth-challenge option to false.
+	* src/OptionHandlerFactory.cc
+
 2009-03-13  Tatsuhiro Tsujikawa  <t-tujikawa@users.sourceforge.net>
 
 	Reuse URIs when all unused URIs run out.
diff --git a/src/OptionHandlerFactory.cc b/src/OptionHandlerFactory.cc
index 00a308202..2b8ce7843 100644
--- a/src/OptionHandlerFactory.cc
+++ b/src/OptionHandlerFactory.cc
@@ -603,7 +603,7 @@ OptionHandlers OptionHandlerFactory::createOptionHandlers()
     SharedHandle<OptionHandler> op(new BooleanOptionHandler
 				   (PREF_HTTP_AUTH_CHALLENGE,
 				    TEXT_HTTP_AUTH_CHALLENGE,
-				    V_TRUE,
+				    V_FALSE,
 				    OptionHandler::OPT_ARG));
     op->addTag(TAG_HTTP);
     handlers.push_back(op);