diff --git a/RAGFlowSharp/Api/IDatasetApi.cs b/RAGFlowSharp/Api/IDatasetApi.cs
index 92b2347..9dbbd44 100644
--- a/RAGFlowSharp/Api/IDatasetApi.cs
+++ b/RAGFlowSharp/Api/IDatasetApi.cs
@@ -61,7 +61,7 @@ [JsonContent] Update.RequestBody requestBody
         ITask<List.ResponseBody> ListDatasets(
             // ITask<HttpResponseMessage> ListDatasets(
             string? page = null,
-            string? pageSize = null,
+            [AliasAs("page_size")] string? pageSize = null,
             string? orderby = null,
             bool? desc = null,
             string? name = null,
diff --git a/RAGFlowSharp/Dtos/Chunk/Retrieval.cs b/RAGFlowSharp/Dtos/Chunk/Retrieval.cs
index d67faa0..cca2489 100644
--- a/RAGFlowSharp/Dtos/Chunk/Retrieval.cs
+++ b/RAGFlowSharp/Dtos/Chunk/Retrieval.cs
@@ -32,6 +32,7 @@ public class RetrievedChunk
         {
             public string Content { get; set; } = string.Empty;
             public string? ContentLtks { get; set; }
+            public string DatasetId { get; set; } = string.Empty;
             public string DocumentId { get; set; } = string.Empty;
             public string? DocumentKeyword { get; set; }
             public string? Highlight { get; set; }