diff --git a/piker/brokers/ib.py b/piker/brokers/ib.py
index 248039d4..8955317c 100644
--- a/piker/brokers/ib.py
+++ b/piker/brokers/ib.py
@@ -1157,6 +1157,11 @@ async def backfill_bars(
     https://github.com/pikers/piker/issues/128
 
     """
+    if platform.system() == 'Windows':
+        log.warning(
+            'Decreasing history query count to 4 since, windows...')
+        count = 4
+
     out, fails = await get_bars(sym)
     if out is None:
         raise RuntimeError("Could not pull currrent history?!")