diff --git a/MToon/Resources/Shaders/MToonCore.cginc b/MToon/Resources/Shaders/MToonCore.cginc
index cabfc16..9932066 100644
--- a/MToon/Resources/Shaders/MToonCore.cginc
+++ b/MToon/Resources/Shaders/MToonCore.cginc
@@ -100,7 +100,7 @@ inline float4 CalculateOutlineVertexClipPosition(appdata_full v)
     projectedNormal.x *= aspect;
     vertex.xy += 0.01 * _OutlineWidth * outlineTex * projectedNormal.xy;
  #else
-    float4 vertex = float4(0, 0, 2, 1);
+    float4 vertex = UnityObjectToClipPos(v.vertex);
  #endif
     return vertex;
 }