diff --git a/Assets/VRM10/Runtime/Components/Vrm10Runtime/ControlRig/Vrm10ControlBone.cs b/Assets/VRM10/Runtime/Components/Vrm10Runtime/ControlRig/Vrm10ControlBone.cs
index c43f742f1..36828b9fb 100644
--- a/Assets/VRM10/Runtime/Components/Vrm10Runtime/ControlRig/Vrm10ControlBone.cs
+++ b/Assets/VRM10/Runtime/Components/Vrm10Runtime/ControlRig/Vrm10ControlBone.cs
@@ -58,7 +58,8 @@ namespace UniVRM10
 
             BoneType = boneType;
             ControlTarget = controlTarget;
-            ControlBone = new GameObject(boneType.ToString()).transform;
+            // NOTE: bone name must be unique in the vrm instance.
+            ControlBone = new GameObject($"{nameof(Vrm10ControlBone)}:{boneType.ToString()}").transform;
             ControlBone.position = controlTarget.position;
             InitialControlBoneLocalPosition = ControlBone.localPosition;
             InitialControlBoneLocalRotation = ControlBone.localRotation;