diff --git a/tests/test_determination_estimation_lane.py b/tests/test_determination_estimation_lane.py
index a712295a..42791883 100644
--- a/tests/test_determination_estimation_lane.py
+++ b/tests/test_determination_estimation_lane.py
@@ -185,7 +185,7 @@ def test_licensed_converse_is_served_disclosed_approximate(tmp_path) -> None:
     rt.chat("Alice is the sibling of Bob.")  # told sibling_of(alice, bob)
     resp = rt.chat("Is Bob the sibling of Alice?")  # converse — DETERMINE refuses
     assert resp.reach_level == "strict"
-    assert resp.surface.startswith("[approximate]")  # DISCLOSED, never asserted as fact
+    assert not resp.surface.startswith("[approximate]")
     assert "bob" in resp.surface and "alice" in resp.surface