diff --git a/src/memos/mem_reader/read_multi_modal/file_content_parser.py b/src/memos/mem_reader/read_multi_modal/file_content_parser.py
index 4ec4f5279..b5305af9a 100644
--- a/src/memos/mem_reader/read_multi_modal/file_content_parser.py
+++ b/src/memos/mem_reader/read_multi_modal/file_content_parser.py
@@ -497,6 +497,8 @@ def parse_fine(
         info_ = info.copy()
         user_id = info_.pop("user_id", "")
         session_id = info_.pop("session_id", "")
+        if file_id:
+            info_["file_id"] = file_id
 
         # For file content parts, default to LongTermMemory
         memory_type = "LongTermMemory"