diff --git a/Assets/VRM/UniVRM/Scripts/FirstPerson/VRMFirstPerson.cs b/Assets/VRM/UniVRM/Scripts/FirstPerson/VRMFirstPerson.cs
index 11b59375c..480032843 100644
--- a/Assets/VRM/UniVRM/Scripts/FirstPerson/VRMFirstPerson.cs
+++ b/Assets/VRM/UniVRM/Scripts/FirstPerson/VRMFirstPerson.cs
@@ -52,18 +52,22 @@ namespace VRM
 
         public IEnumerable<Validation> Validate()
         {
-            var hierarchy = GetComponentsInChildren<Transform>();
+            var hierarchy = GetComponentsInChildren<Transform>(true);
 
             for (int i = 0; i < Renderers.Count; ++i)
             {
                 var r = Renderers[i];
                 if (r.Renderer == null)
                 {
-                    yield return Validation.Error($"{name}.Renderers[{i}].Renderer is null");
+                    yield return Validation.Error($"[VRMFirstPerson]{name}.Renderers[{i}].Renderer is null");
                 }
                 if (!hierarchy.Contains(r.Renderer.transform))
                 {
-                    yield return Validation.Error($"{name}.Renderers[{i}].Renderer is out of hierarchy");
+                    yield return Validation.Error($"[VRMFirstPerson]{name}.Renderers[{i}].Renderer is out of hierarchy");
+                }
+                if (!r.Renderer.gameObject.activeInHierarchy)
+                {
+                    yield return Validation.Error($"[VRMFirstPerson]{name}.Renderers[{i}].Renderer is not active");
                 }
             }
             yield break;