diff --git a/tests/test_routing.py b/tests/test_routing.py
index 11ca94e..d3f1fac 100644
--- a/tests/test_routing.py
+++ b/tests/test_routing.py
@@ -52,7 +52,13 @@ async def mock_httpx_get(self, **kwargs):
 
 @pytest.mark.parametrize(
     "invalid_route",
-    ["/query/", "/query/?min_age=20", "/nodes/", "/attributes/nb:SomeClass/"],
+    [
+        "/query/",
+        "/query/?min_age=20",
+        "/nodes/",
+        "/attributes/",
+        "/assessments/",
+    ],
 )
 def test_request_including_trailing_slash_fails(
     test_app, disable_auth, invalid_route