diff --git a/resources/tester/test_564_1_e02_chain.py b/resources/tester/test_564_1_e02_chain.py
index 3f97b87e1..edeb43f8f 100644
--- a/resources/tester/test_564_1_e02_chain.py
+++ b/resources/tester/test_564_1_e02_chain.py
@@ -121,8 +121,6 @@ def fake_3d(tmp_path, monkeypatch):
     monkeypatch.setattr(e04, "_source_root", lambda root: root)
     monkeypatch.setattr(source, "stations", lambda src: STATIONS)
     monkeypatch.setattr(e04, "_current_fingerprint", lambda *a: "fp")
-    # 564-2 열쇠 꼴(조건 들어감) — 그 전 판에서도 시험이 돌게 가짜로
-    monkeypatch.setattr(run3d, "section_key", lambda s, e, c="dry": f"{s:.2f}_{e:.2f}_{c}")
     monkeypatch.setattr(
         run3d, "load", lambda root, key: {"fingerprint": "fp"} if key in fresh else None
     )