diff --git a/Assets/VRMShaders/VRM10/MToon10/Resources/VRM10/vrmc_materials_mtoon_define.hlsl b/Assets/VRMShaders/VRM10/MToon10/Resources/VRM10/vrmc_materials_mtoon_define.hlsl
index 885bd51dd..59cad75b6 100644
--- a/Assets/VRMShaders/VRM10/MToon10/Resources/VRM10/vrmc_materials_mtoon_define.hlsl
+++ b/Assets/VRMShaders/VRM10/MToon10/Resources/VRM10/vrmc_materials_mtoon_define.hlsl
@@ -31,7 +31,7 @@ inline bool MToon_IsOutlinePass()
 // Compile-time constant
 inline bool MToon_IsNormalMapOn()
 {
-#if defined(_MTOON_NORMALMAP)
+#if defined(_NORMALMAP)
     return true;
 #else
     return false;