diff --git a/src/memos/mem_reader/multi_modal_struct.py b/src/memos/mem_reader/multi_modal_struct.py
index a27d64758..e3d2bece9 100644
--- a/src/memos/mem_reader/multi_modal_struct.py
+++ b/src/memos/mem_reader/multi_modal_struct.py
@@ -721,6 +721,7 @@ def _process_one_item(
                             m_maybe_merged.get("memory_type", "LongTermMemory")
                             .replace("长期记忆", "LongTermMemory")
                             .replace("用户记忆", "UserMemory")
+                            .replace("pref", "UserMemory")
                         )
                         node = self._make_memory_item(
                             value=m_maybe_merged.get("value", ""),