diff --git a/OpenGLEngine/MyBuiltinCubeScene.h b/OpenGLEngine/MyBuiltinCubeScene.h
index 504d7d4..f22f7f1 100644
--- a/OpenGLEngine/MyBuiltinCubeScene.h
+++ b/OpenGLEngine/MyBuiltinCubeScene.h
@@ -15,5 +15,5 @@ public:
 private:
 	BasicRenderable m_shape;
 	Camera2D m_camera;
-	BasicBatch m_batch;
+	BasicBatch& m_batch;
 };
\ No newline at end of file