diff --git a/authserv/server.py b/authserv/server.py
index 7853fe7de0b7598e63365a6be467dea93a717183..28b27e6275ec55623866cdee905ea40b8efa1e8f 100644
--- a/authserv/server.py
+++ b/authserv/server.py
@@ -53,7 +53,8 @@ def run(flask_app, addr, port, ssl_ca, ssl_cert, ssl_key, dh_params):
             'ssl_version': ssl.PROTOCOL_TLSv1,
         }
     logging.info('starting gevent server on %s:%d', addr, port)
-    WSGIServer((addr, port), flask_app.wsgi_app, **ssl_args).serve_forever()
+    # Set log=None to disable the access log.
+    WSGIServer((addr, port), flask_app.wsgi_app, log=None, **ssl_args).serve_forever()
 
 
 def main(sysargs=None):