diff --git a/Runtime/HumanoidFree/Scripts/Physics/HumanoidCollisionHandler.cs b/Runtime/HumanoidFree/Scripts/Physics/HumanoidCollisionHandler.cs
index d6cacea..1cf176d 100644
--- a/Runtime/HumanoidFree/Scripts/Physics/HumanoidCollisionHandler.cs
+++ b/Runtime/HumanoidFree/Scripts/Physics/HumanoidCollisionHandler.cs
@@ -19,9 +19,9 @@ namespace Passer.Humanoid {
             // static colliders
             if (rigidbody == null)
                 humanoid.triggerEntered = true;
-            else
+
             if (!otherCollider.isTrigger && !humanoid.IsMyRigidbody(rigidbody)
-                && !rigidbody.transform.IsChildOf(humanoid.transform)
+                && (rigidbody == null || !rigidbody.transform.IsChildOf(humanoid.transform))
                 ) {
                 Vector3 worldVelocity = humanoid.headTarget.neck.target.transform.TransformDirection(humanoid.velocity);
                 worldVelocity += humanoid.targetVelocity;