diff --git a/backend/documents_parser/tests/test_pashub_sap_accuracy.py b/backend/documents_parser/tests/test_pashub_sap_accuracy.py
index 191e87930..c6a4a4e0e 100644
--- a/backend/documents_parser/tests/test_pashub_sap_accuracy.py
+++ b/backend/documents_parser/tests/test_pashub_sap_accuracy.py
@@ -21,11 +21,11 @@ a **hybrid** gate:
     calculable `EpcPropertyData`. Any *unexpected* exception is a hard fail (a
     real extractor/mapper bug on that property). The one *known* remaining gap —
     the pashub mapper not coding a main-heating `main_heating_control` label to a
-    SAP code (`UnmappedSapCode`) — is `xfail`ed dynamically, so these flip to
-    passing automatically once that mapper fix lands. The main-fuel-code gap
+    SAP code — is `xfail`ed dynamically (see `_KNOWN_GAPS` for its two forms), so
+    these flip to passing once that mapper fix lands. The main-fuel-code gap
     (`Bulk LPG`, and the `Fuel:`-form Mains Gas the extractor was dropping) was
-    closed in #1558, so those exceptions are *no longer* swallowed — a fixture
-    that regresses to a fuel gap now hard-fails.
+    closed in #1558, so `MissingMainFuelType` is *no longer* swallowed — a
+    fixture that regresses to a dropped fuel now hard-fails.
 
   * `test_pashub_sap_accuracy_aggregate` — over the fixtures that compute:
     fraction within 0.5 SAP of `pre_sap`, and MAE. Ratcheting floor/ceiling
@@ -45,17 +45,20 @@ from typing import Optional
 import pytest
 
 from backend.documents_parser.parser import parse_site_notes_pdf
+from datatypes.epc.domain.mapper import UnmappedPasHubLabel
 from domain.sap10_calculator.calculator import Sap10Calculator
 from domain.sap10_calculator.exceptions import UnmappedSapCode
 
 # Known in-progress pashub main-heating string→SAP-code mapper gaps, fixed
-# field-by-field. The remaining gap is a raw `main_heating_control` label the
-# calculator can't code (`UnmappedSapCode`) — it xfails until that mapper fix
-# lands. The main-fuel-code gaps are closed: mains-gas code landed in #1554, and
-# #1558 coded "Bulk LPG" and captured the `Fuel:`-form Mains Gas the extractor
-# was dropping. Their exceptions (`UnmappedPasHubLabel`, `MissingMainFuelType`)
-# are deliberately *not* here, so a fuel regression hard-fails instead of hiding.
-_KNOWN_GAPS: tuple[type[Exception], ...] = (UnmappedSapCode,)
+# field-by-field. The remaining gap is the `main_heating_control` label, which
+# surfaces in one of two forms: `UnmappedSapCode` (raw label reaches the
+# calculator) or, once the control mapper (#1557) lands, `UnmappedPasHubLabel`
+# (strict-raised at the boundary for a control label not yet mapped — e.g. the
+# cohort's community-heating charging control). Both xfail until that fix lands.
+# The main-fuel-code gaps are closed (mains-gas code #1554; "Bulk LPG" + the
+# `Fuel:`-form Mains Gas the extractor was dropping #1558), so `MissingMainFuelType`
+# is deliberately *not* here — a fuel-drop regression hard-fails instead of hiding.
+_KNOWN_GAPS: tuple[type[Exception], ...] = (UnmappedSapCode, UnmappedPasHubLabel)
 
 _FIXTURES_DIR = Path(__file__).parent / "fixtures" / "pashub_accuracy"
 _MANIFEST_PATH = _FIXTURES_DIR / "manifest.json"