diff --git a/vam/whittaker/__init__.py b/vam/whittaker/__init__.py
index a26c4f5..c8b2a9e 100644
--- a/vam/whittaker/__init__.py
+++ b/vam/whittaker/__init__.py
@@ -1,4 +1,4 @@
 from ._version import __version__
 from ._whit import lag1corr, ws2d, ws2dp, ws2doptv, ws2doptvp
 
-__all__ = ("__version__",)
+__all__ = (__version__, "lag1corr", "ws2d", "ws2dp", "ws2doptv", "ws2doptvp")