diff --git a/piker/brokers/ib/broker.py b/piker/brokers/ib/broker.py
index 93a5b9b8..012975ac 100644
--- a/piker/brokers/ib/broker.py
+++ b/piker/brokers/ib/broker.py
@@ -533,8 +533,6 @@ async def trades_dialogue(
                     ):
                         trans = norm_trade_records(ledger)
                         updated = table.update_from_trans(trans)
-                        pp = updated[bsuid]
-
                         # update trades ledgers for all accounts from connected
                         # api clients which report trades for **this session**.
                         trades = await proxy.trades()
@@ -562,6 +560,12 @@ async def trades_dialogue(
                                 table.update_from_trans(trans)
                                 updated = table.update_from_trans(trans)
 
+                        # XXX: not sure exactly why it wouldn't be in
+                        # the updated output (maybe this is a bug?) but
+                        # if you create a pos from TWS and then load it
+                        # from the api trades it seems we get a key
+                        # error from ``update[bsuid]`` ?
+                        pp = table.pps[bsuid]
                         if msg.size != pp.size:
                             log.error(
                                 'Position mismatch {pp.symbol.front_fqsn()}:\n'