diff --git a/tests/agent/test_turn_base_display_anchor.py b/tests/agent/test_turn_base_display_anchor.py
index 6c1a6f1183..ac78ab4184 100644
--- a/tests/agent/test_turn_base_display_anchor.py
+++ b/tests/agent/test_turn_base_display_anchor.py
@@ -198,4 +198,5 @@ class TestInvalidationSitesClearTurnBaseAnchor:
         from agent import agent_init
 
         src = inspect.getsource(agent_init)
-        assert "_turn_base_usage_anchor = None" in src
+        # Init defaults are declared in the ``_USAGE_STATE`` table.
+        assert '"_turn_base_usage_anchor": None' in src