diff --git a/datatypes/epc/domain/tests/test_from_site_notes.py b/datatypes/epc/domain/tests/test_from_site_notes.py
index 0b19b4084..b9d39db84 100644
--- a/datatypes/epc/domain/tests/test_from_site_notes.py
+++ b/datatypes/epc/domain/tests/test_from_site_notes.py
@@ -1266,6 +1266,7 @@ class TestMainFuelCoding:
             # was dropping. 10 = epc_codes `main_fuel` dual fuel (mineral + wood).
             ("Dual fuel appliance (mineral and wood)", 10),
             ("Electricity", 30),  # standard-electricity fuel code
+            ("Heating oil", 28),  # oil (not community); Table 32 code 4
         ],
     )
     def test_label_maps_to_sap_code(self, label: str, expected_code: int) -> None: