diff --git a/mathgenerator/funcs/__init__.py b/mathgenerator/funcs/__init__.py
index 25fb266..bb75b5c 100644
--- a/mathgenerator/funcs/__init__.py
+++ b/mathgenerator/funcs/__init__.py
@@ -73,3 +73,4 @@ from .geometricMeanFunc import *
 from .harmonicMeanFunc import *
 from .euclidianNormFunc import *
 from .angleBtwVectorsFunc import *
+from .absoluteDifferenceFunc import *