diff --git a/resources/tester/test_m02_layer_screen.py b/resources/tester/test_m02_layer_screen.py
index 16cbb110f..80e1bf0f8 100644
--- a/resources/tester/test_m02_layer_screen.py
+++ b/resources/tester/test_m02_layer_screen.py
@@ -210,8 +210,10 @@ def test_층_길_접두어와_고정_풀림():
     for path in ("/structures/numbers", "/structure-combos"):
         assert re.search(rf'scoped\(\s*[`"]{re.escape(path)}', api), path
     assert "/layers/personal/items/copy" in api
-    for name in ("Structure", "Combo_Api"):
-        assert '"system"' not in _text(M02 / f"M02_MasterTemplete_{name}.ts")
+    assert '"system"' not in _text(M02 / "M02_MasterTemplete_Structure.ts")
+    # 열 조합 읽기(옛 Combo_Api · 39-4 D3 지움) 자리 = 열마다 일위대가 문서 — 층을 받아 부름
+    labor = _text(M02 / "M02_MasterTemplete_Labor_Api.ts")
+    assert "const laborAt = (layer: Layer, column: string, tail: string): string =>" in labor
     side = _text(M02 / "M02_MasterTemplete_UI_Side.ts")
     assert "const layer = opt.layer;" in side
     assert 'layer === "system"' in side  # 도면 양식은 시스템 층에만