diff --git a/Assets/VRM/UniVRM/Scripts/SkinnedMeshUtility/BoneNormalizer.cs b/Assets/VRM/UniVRM/Scripts/SkinnedMeshUtility/BoneNormalizer.cs
index bc86c9c97..db9e2e47a 100644
--- a/Assets/VRM/UniVRM/Scripts/SkinnedMeshUtility/BoneNormalizer.cs
+++ b/Assets/VRM/UniVRM/Scripts/SkinnedMeshUtility/BoneNormalizer.cs
@@ -322,7 +322,14 @@ namespace VRM
             var mesh = srcMesh.Copy(false);
             mesh.name = srcMesh.name + ".baked";
             srcRenderer.BakeMesh(mesh);
-
+           
+            var blendShapeValues = new Dictionary<int,float>();
+            for (int i = 0; i < srcMesh.blendShapeCount; i++)
+            {
+                var val = srcRenderer.GetBlendShapeWeight(i);
+                if (val > 0) blendShapeValues.Add(i, val);
+            }
+        
             mesh.boneWeights = MapBoneWeight(srcMesh.boneWeights, boneMap, srcRenderer.bones, dstBones); // restore weights. clear when BakeMesh
 
             // recalc bindposes
@@ -373,9 +380,12 @@ namespace VRM
                 {
                     throw new Exception("different vertex count");
                 }
-                srcRenderer.SetBlendShapeWeight(i, 0);
+
+                var value = blendShapeValues.ContainsKey(i) ? blendShapeValues[i] : 0;
+                srcRenderer.SetBlendShapeWeight(i, value);
 
                 Vector3[] vertices = blendShapeMesh.vertices;
+                
                 for (int j = 0; j < vertices.Length; ++j)
                 {
                     if (originalBlendShapePositions[j] == Vector3.zero)
@@ -394,6 +404,7 @@ namespace VRM
                     if (originalBlendShapeNormals[j] == Vector3.zero)
                     {
                         normals[j] = Vector3.zero;
+                        
                     }
                     else
                     {