diff --git a/tests/domain/scene-document-validation.test.ts b/tests/domain/scene-document-validation.test.ts
index 01f72f1f..3757db86 100644
--- a/tests/domain/scene-document-validation.test.ts
+++ b/tests/domain/scene-document-validation.test.ts
@@ -1135,6 +1135,7 @@ describe("validateSceneDocument", () => {
     };
     document.world.showCelestialBodies = "yes" as unknown as boolean;
     document.world.ambientLight.intensity = -0.25;
+    document.world.celestialOrbits.sun.azimuthDegrees = 400;
     document.world.sunLight.direction = {
       x: 0,
       y: 0,
@@ -1157,6 +1158,10 @@ describe("validateSceneDocument", () => {
           code: "invalid-world-ambient-intensity",
           path: "world.ambientLight.intensity"
         }),
+        expect.objectContaining({
+          code: "invalid-world-sun-orbit-azimuth",
+          path: "world.celestialOrbits.sun.azimuthDegrees"
+        }),
         expect.objectContaining({
           code: "invalid-world-sun-direction",
           path: "world.sunLight.direction"