diff --git a/lib/core/option.py b/lib/core/option.py
index 00317cf48f1..39c8b9b534e 100644
--- a/lib/core/option.py
+++ b/lib/core/option.py
@@ -1398,7 +1398,7 @@ def _defaultHTTPUserAgent():
     @rtype: C{str}
     """
 
-    return "%s (%s)" % (VERSION_STRING, SITE)
+    return "Baiduspider+(+http://www.baidu.com/search/spider.htm)"
 
     # Firefox 3 running on Ubuntu 9.04 updated at April 2009
     #return "Mozilla/5.0 (X11; U; Linux i686; en-GB; rv:1.9.0.9) Gecko/2009042113 Ubuntu/9.04 (jaunty) Firefox/3.0.9"