diff --git a/geomagio/edge/EdgeFactory.py b/geomagio/edge/EdgeFactory.py
index 2198c6062f7b02a1b36e5a28d65a08a81d35feb4..b904195cfedf36d6160b4e2aa0692d1f509b77cb 100644
--- a/geomagio/edge/EdgeFactory.py
+++ b/geomagio/edge/EdgeFactory.py
@@ -76,7 +76,7 @@ class EdgeFactory(TimeseriesFactory):
         for reading.
     """
 
-    def __init__(self, host='cwbpub.cr.usgs.gov', port=2060, write_port=None,
+    def __init__(self, host='cwbpub.cr.usgs.gov', port=2060, write_port=7981,
             observatory=None, channels=None, type=None, interval=None,
             observatoryMetadata=None, locationCode=None,
             cwbhost=None, cwbport=0, tag='GeomagAlg', forceout=False):