diff --git a/ndim.py b/ndim.py
index <HASH>..<HASH> 100644
--- a/ndim.py
+++ b/ndim.py
@@ -1,3 +1,4 @@
 from ndim_base import *
+from ndim_arc import *
 from ndim_bezier import *
 
diff --git a/setup.py b/setup.py
index <HASH>..<HASH> 100644
--- a/setup.py
+++ b/setup.py
@@ -8,7 +8,7 @@ setup(
     name                = 'ndim',
     packages            = [],
     version             = '0.3',
-    py_modules          = ['ndim', 'ndim_base', 'ndim_bezier'],
+    py_modules          = ['ndim', 'ndim_base', 'ndim_arc', 'ndim_bezier'],
     description         = 'Utility functions for manipulating points N-dimensional geometry.',
     author              = 'David McEwan',
     author_email        = 'cogitocumimpune@hotmail.com',
Add ndim_arc to install setup.