diff --git a/bin/weewx/restx.py b/bin/weewx/restx.py
index bb8534e8..7a2fe106 100644
--- a/bin/weewx/restx.py
+++ b/bin/weewx/restx.py
@@ -783,7 +783,7 @@ class WOWThread(AmbientThread):
                                  "siteAuthenticationKey=XXX", _url))
         return _url
 
-    def post_request(self, request):
+    def post_request(self, request, payload=None):
         """Version of post_request() for the WOW protocol, which
         uses a response error code to signal a bad login."""
         try:
diff --git a/docs/changes.txt b/docs/changes.txt
index ba791ff6..ff55fdc1 100644
--- a/docs/changes.txt
+++ b/docs/changes.txt
@@ -1,6 +1,11 @@
 weewx change history
 --------------------
 
+3.3.1 12/06/2015
+
+Fixed bug when posting to WOW.
+
+
 3.3.0 12/05/2015
 
 Now really includes wunderfixer. It was inadvertently left out of the install