diff --git a/Scripts/SkinnedMeshUtility/Editor/BoneNormalizer.cs b/Scripts/SkinnedMeshUtility/Editor/BoneNormalizer.cs
index f0e1815b4..a6b376721 100644
--- a/Scripts/SkinnedMeshUtility/Editor/BoneNormalizer.cs
+++ b/Scripts/SkinnedMeshUtility/Editor/BoneNormalizer.cs
@@ -171,7 +171,7 @@ namespace VRM
                                 name = String.Format("{0}", i);
                             }
 
-                            var s = src.lossyScale.x;
+                            var s = src.localScale.x;
                             try
                             {
                                 mesh.AddBlendShapeFrame(name,