diff --git a/tutorial_2/init.py b/tutorial_2/init.py
index 7b079a5..f276734 100644
--- a/tutorial_2/init.py
+++ b/tutorial_2/init.py
@@ -1,5 +1,6 @@
 from pinocchio import SE3, neutral
 from pyhpp.manipulation import Device, urdf
+from pyhpp_viser import Viewer  # noqa: F401
 
 robot = Device("tuto")