diff --git a/pyghmi/ipmi/private/session.py b/pyghmi/ipmi/private/session.py
index db9eef79..f41fe0d2 100644
--- a/pyghmi/ipmi/private/session.py
+++ b/pyghmi/ipmi/private/session.py
@@ -540,7 +540,7 @@ class Session(object):
     def _mark_broken(self, error=None):
         # since our connection has failed retries
         # deregister our keepalive facility
-        self.lastpayload = none
+        self.lastpayload = None
         with util.protect(KEEPALIVE_SESSIONS):
             Session.keepalive_sessions.pop(self, None)
         with util.protect(WAITING_SESSIONS):