diff --git a/Lagrange.OneBot/Message/Entity/FileSegment.cs b/Lagrange.OneBot/Message/Entity/FileSegment.cs
index b56ad87a1..6445ee79a 100644
--- a/Lagrange.OneBot/Message/Entity/FileSegment.cs
+++ b/Lagrange.OneBot/Message/Entity/FileSegment.cs
@@ -9,11 +9,11 @@ public partial class FileSegment(string fileName, string fileHash, string fileId
 {
     public FileSegment() : this("", "", "", "") { }
     
-    [JsonPropertyName("filename")] public string Filename { get; set; } = fileName;
+    [JsonPropertyName("file_name")] public string Filename { get; set; } = fileName;
     
-    [JsonPropertyName("filehash")] public string Filehash { get; set; }  = fileHash;
+    [JsonPropertyName("file_hash")] public string Filehash { get; set; }  = fileHash;
 
-    [JsonPropertyName("id")] public string Fileid { get; set; } = fileId;
+    [JsonPropertyName("file_id")] public string Fileid { get; set; } = fileId;
 
     [JsonPropertyName("url")] public string Url { get; set; } = url;
     
@@ -42,4 +42,4 @@ public override SegmentBase FromEntity(MessageChain chain, IMessageEntity entity
 
         return new FileSegment(fileEntity.FileName, fileEntity.FileHash ?? "", fileEntity.FileId ?? fileEntity.FileUuid ??  "", fileEntity.FileUrl ?? "");
     }
-}
\ No newline at end of file
+}