diff --git a/piker/brokers/ib/feed.py b/piker/brokers/ib/feed.py
index 6782e010..ce437ec6 100644
--- a/piker/brokers/ib/feed.py
+++ b/piker/brokers/ib/feed.py
@@ -214,7 +214,9 @@ async def open_history_client(
 
             # could be trying to retreive bars over weekend
             if out is None:
-                log.error(f"Can't grab bars starting at {end_dt}!?!?")
+                log.error(
+                    f"No bars starting at {end_dt!r} !?!?"
+                )
                 if (
                     end_dt
                     and head_dt