diff --git a/ThermiaOnlineAPI/model/HeatPump.py b/ThermiaOnlineAPI/model/HeatPump.py
index 075bd67..ceef68c 100644
--- a/ThermiaOnlineAPI/model/HeatPump.py
+++ b/ThermiaOnlineAPI/model/HeatPump.py
@@ -215,7 +215,7 @@ def name(self):
 
     @property
     def id(self):
-        return self.__info.get("id")
+        return self.__device_id
 
     @property
     def is_online(self):