diff --git a/piker/ui/_flows.py b/piker/ui/_flows.py
index 03d95a35..d2b1fa90 100644
--- a/piker/ui/_flows.py
+++ b/piker/ui/_flows.py
@@ -53,7 +53,7 @@ from ._ohlc import (
 )
 from ._curve import (
     FastAppendCurve,
-    step_path_arrays_from_1d,
+    # step_path_arrays_from_1d,
 )
 from ._compression import (
     # ohlc_flatten,