diff --git a/sdk/basyx/aas/adapter/json/json_deserialization.py b/sdk/basyx/aas/adapter/json/json_deserialization.py
index d3479b2c..e6fc9b44 100644
--- a/sdk/basyx/aas/adapter/json/json_deserialization.py
+++ b/sdk/basyx/aas/adapter/json/json_deserialization.py
@@ -692,7 +692,6 @@ def _construct_submodel_element_list(cls, dct: Dict[str, object], object_class=m
                     ret.value.add(element)
         return ret
 
-    @classmethod
     @classmethod
     def _construct_blob(cls, dct: Dict[str, object], object_class=model.Blob) -> model.Blob:
         ret = object_class(