diff --git a/Assets/VRM10/Runtime/IO/Vrm10Importer.cs b/Assets/VRM10/Runtime/IO/Vrm10Importer.cs
index 1ed82b9b1..140f8011f 100644
--- a/Assets/VRM10/Runtime/IO/Vrm10Importer.cs
+++ b/Assets/VRM10/Runtime/IO/Vrm10Importer.cs
@@ -488,6 +488,19 @@ namespace UniVRM10
                     });
                 }
             }
+            // 設定の無い renderer に auto を割り当てる
+            foreach (var smr in Root.GetComponentsInChildren<SkinnedMeshRenderer>())
+            {
+                var relative = smr.transform.RelativePathFrom(Root.transform);
+                if (!vrm.FirstPerson.Renderers.Any(x => x.Renderer == relative))
+                {
+                    vrm.FirstPerson.Renderers.Add(new RendererFirstPersonFlags
+                    {
+                        FirstPersonFlag = UniGLTF.Extensions.VRMC_vrm.FirstPersonType.auto,
+                        Renderer = relative,
+                    });
+                }
+            }
 
             return vrm;
         }