diff --git a/ai21/models/responses/library_search_response.py b/ai21/models/responses/library_search_response.py
index 06150bbb..0e15bcba 100644
--- a/ai21/models/responses/library_search_response.py
+++ b/ai21/models/responses/library_search_response.py
@@ -10,6 +10,7 @@ class LibrarySearchResult(AI21BaseModelMixin):
     file_id: str
     file_name: str
     score: float
+    order: Optional[int] = None
     public_url: Optional[str] = None
     labels: Optional[List[str]] = None