diff --git a/Assets/VRM/UniGLTF/Scripts/IO/gltfExporter.cs b/Assets/VRM/UniGLTF/Scripts/IO/gltfExporter.cs
index 8e2cf2436..4e5eb6a98 100644
--- a/Assets/VRM/UniGLTF/Scripts/IO/gltfExporter.cs
+++ b/Assets/VRM/UniGLTF/Scripts/IO/gltfExporter.cs
@@ -54,7 +54,7 @@ namespace UniGLTF
             }
             else
             {
-                EditorUtility.DisplayDialog("Error", "Root's Position, Rotation and Scale need to be Default values.", "ok");
+                EditorUtility.DisplayDialog("Error", "The Root transform should have Default translation, rotation and scale.", "ok");
             }
         }
 #endif
diff --git a/Assets/VRM/UniVRM/Editor/Format/VRMExportSettings.cs b/Assets/VRM/UniVRM/Editor/Format/VRMExportSettings.cs
index 31b0af119..3c9f9bd76 100644
--- a/Assets/VRM/UniVRM/Editor/Format/VRMExportSettings.cs
+++ b/Assets/VRM/UniVRM/Editor/Format/VRMExportSettings.cs
@@ -156,7 +156,8 @@ namespace VRM
                 Source.transform.rotation != Quaternion.identity ||
                 Source.transform.localScale != Vector3.one)
             {
-                yield return Validation.Error("Root's Position, Rotation and Scale need to be Default values.");
+                EditorUtility.DisplayDialog("Error", "The Root transform should have Default translation, rotation and scale.", "ok");
+                yield return Validation.Error("The Root transform should have Default translation, rotation and scale.");
             }
 
             var animator = Source.GetComponent<Animator>();