diff --git a/src/HABApp/openhab/definitions/rest/things.py b/src/HABApp/openhab/definitions/rest/things.py
index 8d317ea9..7b6c9dae 100644
--- a/src/HABApp/openhab/definitions/rest/things.py
+++ b/src/HABApp/openhab/definitions/rest/things.py
@@ -12,7 +12,7 @@ class ChannelResp(Struct, kw_only=True):
 
     uid: str
     id: str
-    channel_type: str = field(name='channelTypeUID')
+    channel_type: Optional[str] = field(default=None, name='channelTypeUID')
     item_type: Optional[str] = field(default=None, name='itemType')
     kind: str
     label: str = ''