diff --git a/crates/jxl-grid/RUSTSEC-2026-0151.md b/crates/jxl-grid/RUSTSEC-2026-0151.md
index d985324a..a0d57585 100644
--- a/crates/jxl-grid/RUSTSEC-2026-0151.md
+++ b/crates/jxl-grid/RUSTSEC-2026-0151.md
@@ -34,8 +34,8 @@ mod miri_ub {
     #[test]
     fn aligned_grid_dimension_product_overflows() {
         let width = usize::MAX / 2 + 1;
-id = "RUSTSEC-2026-0151"
-id = "RUSTSEC-2026-0151"
+        let mut grid = AlignedGrid::<u8>::with_alloc_tracker(width, 2, None).unwrap();
+        let mut subgrid = grid.as_subgrid_mut();
         *subgrid.get_mut(0, 1) = 1;
         std::hint::black_box(grid);
     }