diff --git a/src/head_direction/__init__.py b/src/head_direction/__init__.py
index 88f0122..77c66c7 100644
--- a/src/head_direction/__init__.py
+++ b/src/head_direction/__init__.py
@@ -1,4 +1,4 @@
 # -*- coding: utf-8 -*-
-import head
-
-__all__ = ["head"]
+from .head import head_direction as head_direction
+from .head import head_direction_rate as head_direction_rate
+from .head import head_direction_score as head_direction_score