diff --git a/src/main/resources/messages.properties b/src/main/resources/messages.properties
index 42b1519b..584d96e2 100644
--- a/src/main/resources/messages.properties
+++ b/src/main/resources/messages.properties
@@ -684,9 +684,9 @@ utilities-expenses.electricity=Electricity
 utilities-expenses.water=Water
 utilities-expenses.sewage=Sewage
 utilities-expenses.garbage=Garbage
-utilities-expenses.gas=Gas
-utilities-expenses.oil=Oil
-utilities-expenses.wood-or-coal=Wood or coal
+utilities-expenses.gas=Gas (for heating)
+utilities-expenses.oil=Oil (for heating)
+utilities-expenses.wood-or-coal=Wood or coal (for heating)
 home-expenses.condo-fees=Condominium association or cooperative dues
 home-expenses.tax=Property taxes
 home-expenses.home-insurance=Homeowner's insurance