diff --git a/HCDevice.py b/HCDevice.py
index 54fa5c1..b72ff21 100755
--- a/HCDevice.py
+++ b/HCDevice.py
@@ -122,7 +122,7 @@ class HCDevice:
             for option in data["options"]:
                 option_uid = option["uid"]
                 if str(option_uid) not in self.features:
-                     raise ValueError(
+                    raise ValueError(
                         f"Unable to configure appliance. Option UID {option_uid} is not"
                         " valid for this device."
                     )
diff --git a/hc2mqtt b/hc2mqtt
index fb574ad..06607dd 100755
--- a/hc2mqtt
+++ b/hc2mqtt
@@ -145,7 +145,7 @@ dev = {}
 
 def client_connect(client, device, mqtt_topic):
     host = device["host"]
-    device_topics = topics
+    device_topics = topics.copy()
 
     for value in device["features"]:
         if (
@@ -213,6 +213,5 @@ def client_connect(client, device, mqtt_topic):
 
         time.sleep(40)
 
-
 if __name__ == "__main__":
     hc2mqtt()