diff --git a/piker/brokers/binance/feed.py b/piker/brokers/binance/feed.py
index 53a5073d..ff5f6ec0 100644
--- a/piker/brokers/binance/feed.py
+++ b/piker/brokers/binance/feed.py
@@ -275,9 +275,15 @@ async def open_history_client(
                     f'{times}'
                 )
 
+            # XXX, debug any case where the latest 1m bar we get is
+            # already another "sample's-step-old"..
             if end_dt is None:
                 inow: int = round(time.time())
-                if (inow - times[-1]) > 60:
+                if (
+                    _time_step := (inow - times[-1])
+                    >
+                    timeframe * 2
+                ):
                     await tractor.pause()
 
             start_dt = from_timestamp(times[0])