diff --git a/Assets/VRM/Runtime/IO/VRMExporter.cs b/Assets/VRM/Runtime/IO/VRMExporter.cs
index 91b1d80a3..abbfb3867 100644
--- a/Assets/VRM/Runtime/IO/VRMExporter.cs
+++ b/Assets/VRM/Runtime/IO/VRMExporter.cs
@@ -12,11 +12,6 @@ namespace VRM
     {
         public const Axes VrmSpecificationInverseAxis = Axes.Z;
 
-        protected override IMaterialExporter CreateMaterialExporter()
-        {
-            return new VRMMaterialExporter();
-        }
-
         public static glTF Export(GltfExportSettings configuration, GameObject go, ITextureSerializer textureSerializer)
         {
             var gltf = new glTF();
@@ -40,6 +35,11 @@ namespace VRM
             gltf.extensionsUsed.Add(glTF_VRM_extensions.ExtensionName);
         }
 
+        protected override IMaterialExporter CreateMaterialExporter()
+        {
+            return new VRMMaterialExporter();
+        }
+
         public override void ExportExtensions(ITextureSerializer textureSerializer)
         {
             // avatar