diff --git a/Assets/VRM10/MToon10/Shaders/vrmc_materials_mtoon_geometry_vertex.hlsl b/Assets/VRM10/MToon10/Shaders/vrmc_materials_mtoon_geometry_vertex.hlsl
index 5fee56b43..f67314367 100644
--- a/Assets/VRM10/MToon10/Shaders/vrmc_materials_mtoon_geometry_vertex.hlsl
+++ b/Assets/VRM10/MToon10/Shaders/vrmc_materials_mtoon_geometry_vertex.hlsl
@@ -16,7 +16,7 @@ inline half MToon_GetOutlineVertex_OutlineWidth(const float2 uv)
 {
     if (MToon_IsParameterMapOn())
     {
-        return _OutlineWidth * UNITY_SAMPLE_TEX2D_LOD(_OutlineWidthTex, uv, 0).x;
+        return _OutlineWidth * UNITY_SAMPLE_TEX2D_LOD(_OutlineWidthTex, uv, 0).g;
     }
     else
     {