diff --git a/Scripts/Format/Editor/VRMExporter.cs b/Scripts/Format/Editor/VRMExporter.cs
index 9a3f7f673..f625a094f 100644
--- a/Scripts/Format/Editor/VRMExporter.cs
+++ b/Scripts/Format/Editor/VRMExporter.cs
@@ -15,7 +15,7 @@ namespace VRM
         public static glTF Export(GameObject go, string path = null, Action<glTF_VRM> callback=null)
         {
             var gltf = new glTF_VRM();
-            gltf.asset.generator = "Unity VRM Exporter";
+            gltf.asset.generator = string.Format("UniVRM-{0}.{1}", VRMVersion.MAJOR, VRMVersion.MINOR);
             using (var exporter = new VRMExporter(gltf))
             {
                 _Export(gltf, exporter, go);
diff --git a/Scripts/Format/VRMFormat.cs b/Scripts/Format/VRMFormat.cs
index 11478f33e..0d00a88b5 100644
--- a/Scripts/Format/VRMFormat.cs
+++ b/Scripts/Format/VRMFormat.cs
@@ -8,7 +8,9 @@ namespace VRM
     [Serializable]
     public class glTF_VRM_extensions : JsonSerializableBase
     {
+        [Obsolete("use gltf.asset.generator")]
         public string version = VRMVersion.VERSION;
+
         public glTF_VRM_Meta meta = new glTF_VRM_Meta();
         public glTF_VRM_Humanoid humanoid = new glTF_VRM_Humanoid();
         public glTF_VRM_Firstperson firstPerson = new glTF_VRM_Firstperson();
@@ -18,7 +20,7 @@ namespace VRM
 
         protected override void SerializeMembers(JsonFormatter f)
         {
-            f.KeyValue(() => version);
+            //f.KeyValue(() => version);
             f.KeyValue(() => meta);
             f.KeyValue(() => humanoid);
             f.KeyValue(() => firstPerson);