diff --git a/src/pydase/utils/serializer.py b/src/pydase/utils/serializer.py
index 669021b..32b30ce 100644
--- a/src/pydase/utils/serializer.py
+++ b/src/pydase/utils/serializer.py
@@ -269,12 +269,11 @@ def set_nested_value_by_path(
 
     # setting the new value
     serialized_value = dump(value)
-    if "readonly" in current_dict:
-        if current_dict["type"] != "method":
-            current_dict["type"] = serialized_value["type"]
-        current_dict["value"] = serialized_value["value"]
-    else:
-        current_dict.update(serialized_value)
+    serialized_value.pop("readonly", None)
+    value_type = serialized_value.pop("type")
+    if "readonly" in current_dict and current_dict["type"] != "method":
+        current_dict["type"] = value_type
+    current_dict.update(serialized_value)
 
 
 def get_nested_dict_by_path(