diff --git a/elastica/__init__.py b/elastica/__init__.py
index 60e07a5e..3d188bca 100644
--- a/elastica/__init__.py
+++ b/elastica/__init__.py
@@ -47,6 +47,7 @@
     RodRodContact,
     RodCylinderContact,
     RodSelfContact,
+    RodSphereContact,
 )
 from elastica.callback_functions import CallBackBaseClass, ExportCallBack, MyCallBack
 from elastica.dissipation import (