diff --git a/custom_components/grocy/json_encode.py b/custom_components/grocy/json_encode.py
index 6c55f00..96ce211 100644
--- a/custom_components/grocy/json_encode.py
+++ b/custom_components/grocy/json_encode.py
@@ -4,6 +4,7 @@
 from typing import Any
 
 from pygrocy.data_models.product import ProductBarcode
+from pygrocy.grocy_api_client import ProductBarcodeData
 
 
 class GrocyJSONEncoder(json.JSONEncoder):
@@ -14,6 +15,8 @@ def default(self, o: Any) -> Any:
 
         if isinstance(o, ProductBarcode):
             return o.barcode
+        if isinstance(o, ProductBarcodeData):
+            return o.barcode
         if isinstance(o, datetime):
             return o.isoformat()
         if isinstance(o, set):