diff --git a/hypermat/__init__.py b/hypermat/__init__.py
index 32a6988..ecfffe7 100644
--- a/hypermat/__init__.py
+++ b/hypermat/__init__.py
@@ -1,4 +1,3 @@
 from ._models import *
-from ._ad import Variable
-from ._math import *
+from ._ad import Deformation
 from ._calibration import *