From 7b9cabd084973e339110115b81591067b3d8677c Mon Sep 17 00:00:00 2001
From: Filippo Luca Ferretti <filippoluca.ferretti@outlook.com>
Date: Mon, 2 Dec 2024 11:34:41 +0100
Subject: [PATCH] Fix instanciating contact parameter class

---
 src/jaxsim/api/data.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/jaxsim/api/data.py b/src/jaxsim/api/data.py
index b880547b9..bedd6009b 100644
--- a/src/jaxsim/api/data.py
+++ b/src/jaxsim/api/data.py
@@ -230,7 +230,7 @@ def build(
                 )
 
             else:
-                contacts_params = model.contact_model._parameters_class()
+                contacts_params = model.contact_model()._parameters_class()
 
         return JaxSimModelData(
             state=ode_state,