diff --git a/gridlock/test/test_grid.py b/gridlock/test/test_grid.py
index c6c8ae7..2cb60c5 100644
--- a/gridlock/test/test_grid.py
+++ b/gridlock/test/test_grid.py
@@ -240,6 +240,14 @@ def test_get_slice_uses_shifted_grid_bounds() -> None:
 
 
 
+def test_sampled_preview_exyz_tracks_nonuniform_centers() -> None:
+    grid = Grid([[0, 1, 3, 6, 10], [0, 1, 2], [0, 1, 2]], shifts=[[0, 0, 0]])
+
+    sampled_exyz = grid._sampled_exyz(0, 2)
+
+    assert_allclose(sampled_exyz[0], [-1.5, 2.5, 6.5])
+
+
 def test_visualize_isosurface_sampling_uses_preview_lattice(monkeypatch: pytest.MonkeyPatch) -> None:
     matplotlib = pytest.importorskip('matplotlib')
     matplotlib.use('Agg')