diff --git a/etrack/__init__.py b/etrack/__init__.py
index 2af67b8..accbac9 100644
--- a/etrack/__init__.py
+++ b/etrack/__init__.py
@@ -2,4 +2,5 @@ from .image_marker import ImageMarker, MarkerTask
 from .tracking_result import TrackingResult, coordinate_transformation
 from .arena import Arena, Region
 from .tracking_data import TrackingData
-from .io.dlc_data import DLCReader
\ No newline at end of file
+from .io.dlc_data import DLCReader
+from .io.nixtrack_data import NixtrackData
\ No newline at end of file