diff --git a/src/a2a/server/apps/starlette_app.py b/src/a2a/server/apps/starlette_app.py
index fb7a9908..9ea9a559 100644
--- a/src/a2a/server/apps/starlette_app.py
+++ b/src/a2a/server/apps/starlette_app.py
@@ -151,7 +151,7 @@ def _generate_error_response(
             log_level,
             f'Request Error (ID: {request_id}): '
             f"Code={error_resp.error.code}, Message='{error_resp.error.message}'"
-            f'{", Data=" + str(error_resp.error.data) if hasattr(error, "data") and error_resp.error.data else ""}',
+            f'{", Data=" + str(error_resp.error.data) if error_resp.error.data else ""}',
         )
         return JSONResponse(
             error_resp.model_dump(mode='json', exclude_none=True),
diff --git a/src/a2a/utils/helpers.py b/src/a2a/utils/helpers.py
index 4e3228b2..243ac87b 100644
--- a/src/a2a/utils/helpers.py
+++ b/src/a2a/utils/helpers.py
@@ -69,7 +69,7 @@ def append_artifact_to_task(task: Task, event: TaskArtifactUpdateEvent) -> None:
 
     # Find existing artifact by its id
     for i, art in enumerate(task.artifacts):
-        if hasattr(art, 'artifactId') and art.artifactId == artifact_id:
+        if art.artifactId == artifact_id:
             existing_artifact = art
             existing_artifact_list_index = i
             break