diff --git a/server/api/v1/chat.py b/server/api/v1/chat.py
index 494e445..7172f82 100644
--- a/server/api/v1/chat.py
+++ b/server/api/v1/chat.py
@@ -107,7 +107,7 @@ async def upload_files(
 
             responses.append(file_id)
 
-        return Files(documents=responses)
+        return Files(indices=responses)
 
     @post('/{chat_id:str}/query')
     async def query(
diff --git a/server/schemas/v1/files.py b/server/schemas/v1/files.py
index 3790da9..6ed1b65 100644
--- a/server/schemas/v1/files.py
+++ b/server/schemas/v1/files.py
@@ -11,7 +11,7 @@ class Files(Struct):
 
     Attributes
     ----------
-    documents (list[File]) : the document schemas
+    indices (list[File]) : the document schemas
     """
 
-    documents: Annotated[list[str], Meta(examples=['glsODUdnaUei_A_IxfSRI'])]
+    indices: Annotated[list[str], Meta(examples=['glsODUdnaUei_A_IxfSRI'])]