diff --git a/piker/tsp/__init__.py b/piker/tsp/__init__.py
index 3c49e71b..1df0a554 100644
--- a/piker/tsp/__init__.py
+++ b/piker/tsp/__init__.py
@@ -35,6 +35,7 @@ from ._anal import (
     dedupe as dedupe,
     detect_time_gaps as detect_time_gaps,
     pl2np as pl2np,
+    np2pl as np2pl,
 
     # `numpy` only
     slice_from_time as slice_from_time,