diff --git a/tests/geometry/spline-road-mesh.test.ts b/tests/geometry/spline-road-mesh.test.ts
index 2ebf2ae1..b4967325 100644
--- a/tests/geometry/spline-road-mesh.test.ts
+++ b/tests/geometry/spline-road-mesh.test.ts
@@ -178,6 +178,18 @@ describe("spline road mesh generation", () => {
       6,
       6,
       3,
+      7,
+      0,
+      2,
+      1,
+      4,
+      5,
+      6,
+      0,
+      3,
+      2,
+      4,
+      6,
       7
     ]);
   });