diff --git a/packages/backend-app-api/src/services/implementations/rootHttpRouter/DefaultRootHttpRouter.test.ts b/packages/backend-app-api/src/services/implementations/rootHttpRouter/DefaultRootHttpRouter.test.ts
index b72b30e02e..86c117f7e0 100644
--- a/packages/backend-app-api/src/services/implementations/rootHttpRouter/DefaultRootHttpRouter.test.ts
+++ b/packages/backend-app-api/src/services/implementations/rootHttpRouter/DefaultRootHttpRouter.test.ts
@@ -14,6 +14,8 @@
  * limitations under the License.
  */
 
+import express from 'express';
+import request from 'supertest';
 import { DefaultRootHttpRouter } from './DefaultRootHttpRouter';
 
 describe('DefaultRootHttpRouter', () => {
@@ -54,4 +56,37 @@ describe('DefaultRootHttpRouter', () => {
       'indexPath option may not be an empty string',
     );
   });
+
+  it('will always prioritize non-index paths', async () => {
+    const router = DefaultRootHttpRouter.create({ indexPath: '/x' });
+    const app = express();
+    app.use(router.handler());
+
+    const routerX = express.Router();
+    routerX.get('/a', (_req, res) => res.status(201).end());
+
+    const routerY = express.Router();
+    routerY.get('/a', (_req, res) => res.status(202).end());
+
+    await request(app).get('/').expect(404);
+    await request(app).get('/a').expect(404);
+    await request(app).get('/x/a').expect(404);
+    await request(app).get('/y/a').expect(404);
+
+    router.use('/x', routerX);
+
+    await request(app).get('/').expect(404);
+    await request(app).get('/a').expect(201);
+    await request(app).get('/x/a').expect(201);
+    await request(app).get('/y/a').expect(404);
+
+    router.use('/y', routerY);
+
+    await request(app).get('/').expect(404);
+    await request(app).get('/a').expect(201);
+    await request(app).get('/x/a').expect(201);
+    await request(app).get('/y/a').expect(202);
+
+    expect('test').toBe('test');
+  });
 });