diff --git a/piker/data/feed.py b/piker/data/feed.py
index d5e5d3b3..561d063b 100644
--- a/piker/data/feed.py
+++ b/piker/data/feed.py
@@ -40,6 +40,7 @@ from trio.abc import ReceiveChannel
 from trio_typing import TaskStatus
 import trimeter
 import tractor
+from tractor.trionics import maybe_open_context
 from pydantic import BaseModel
 import pendulum
 import numpy as np