diff --git a/PyViCare/PyViCareGazBoiler.py b/PyViCare/PyViCareGazBoiler.py
index 0098b584..c46ccc09 100644
--- a/PyViCare/PyViCareGazBoiler.py
+++ b/PyViCare/PyViCareGazBoiler.py
@@ -180,7 +180,7 @@ def getGasSummaryConsumptionHeatingLastYear(self):
     # Gas consumption for Domestic Hot Water data:
     @handleNotSupported
     def getGasSummaryConsumptionDomesticHotWaterUnit(self):
-        return self.service.getProperty("heating.gas.consumption.summary.dhw")["properties"]["day"]["unit"]
+        return self.service.getProperty("heating.gas.consumption.summary.dhw")["properties"]["unit"]["value"]
 
     @handleNotSupported
     def getGasSummaryConsumptionDomesticHotWaterCurrentDay(self):
diff --git a/tests/test_Vitodens100W.py b/tests/test_Vitodens100W.py
index 2022577d..e85450f0 100644
--- a/tests/test_Vitodens100W.py
+++ b/tests/test_Vitodens100W.py
@@ -32,3 +32,6 @@ def test_getPowerSummaryConsumptionHeatingCurrentDay(self):
 
     def test_getPowerSummaryConsumptionDomesticHotWaterCurrentYear(self):
         self.assertEqual(self.device.getPowerSummaryConsumptionDomesticHotWaterCurrentYear(), 18)
+
+    def test_getGasSummaryConsumptionDomesticHotWaterUnit(self):
+        self.assertEqual(self.device.getGasSummaryConsumptionDomesticHotWaterUnit(), "cubicMeter")