diff --git a/Assets/UniGLTF/Runtime/UniGLTF/RuntimeGltfInstance.cs b/Assets/UniGLTF/Runtime/UniGLTF/RuntimeGltfInstance.cs
index 99cfaf86b..73c3e7a33 100644
--- a/Assets/UniGLTF/Runtime/UniGLTF/RuntimeGltfInstance.cs
+++ b/Assets/UniGLTF/Runtime/UniGLTF/RuntimeGltfInstance.cs
@@ -221,6 +221,11 @@ namespace UniGLTF
             Destroy(oldResource);
         }
 
+        public void AddResource<T>(T resource) where T : UnityEngine.Object
+        {
+            _resources.Add((SubAssetKey.Create(resource), resource));
+        }
+
         void OnDestroy()
         {
             foreach (var (_, obj) in _resources)
diff --git a/Assets/VRM10/Runtime/Components/VRM10Object/VRM10ObjectFirstPerson.cs b/Assets/VRM10/Runtime/Components/VRM10Object/VRM10ObjectFirstPerson.cs
index 6ac7f1b83..812264422 100644
--- a/Assets/VRM10/Runtime/Components/VRM10Object/VRM10ObjectFirstPerson.cs
+++ b/Assets/VRM10/Runtime/Components/VRM10Object/VRM10ObjectFirstPerson.cs
@@ -104,6 +104,7 @@ namespace UniVRM10
                                 headless.transform.SetParent(smr.transform, false);
                                 if (runtime != null)
                                 {
+                                    runtime.AddResource(headless.sharedMesh);
                                     runtime.AddRenderer(headless);
                                 }
                             }