diff --git a/backtrader/brokers/ibbroker.py b/backtrader/brokers/ibbroker.py
index 2c1b0d9a0..3f1651594 100644
--- a/backtrader/brokers/ibbroker.py
+++ b/backtrader/brokers/ibbroker.py
@@ -276,6 +276,7 @@ def __init__(self, **kwargs):
         self.ordstatus = collections.defaultdict(dict)
         self.notifs = queue.Queue()  # holds orders which are notified
         self.tonotify = collections.deque()  # hold oids to be notified
+        self.positions = self.ib.positions
 
     def start(self):
         super(IBBroker, self).start()