diff --git a/Assets/UniGLTF/Runtime/MeshUtility/MeshFreezer.cs b/Assets/UniGLTF/Runtime/MeshUtility/MeshFreezer.cs
index 56b1a01fe..5f159a1d0 100644
--- a/Assets/UniGLTF/Runtime/MeshUtility/MeshFreezer.cs
+++ b/Assets/UniGLTF/Runtime/MeshUtility/MeshFreezer.cs
@@ -194,7 +194,6 @@ namespace UniGLTF.MeshUtility
             for (int i = 0; i < srcMesh.blendShapeCount; ++i)
             {
                 backcup.Add(src.GetBlendShapeWeight(i));
-                src.SetBlendShapeWeight(i, 0);
             }
 
             var meshVertices = mesh.vertices;