diff --git a/backend/open_webui/retrieval/utils.py b/backend/open_webui/retrieval/utils.py
index df53da78d..106c9da06 100644
--- a/backend/open_webui/retrieval/utils.py
+++ b/backend/open_webui/retrieval/utils.py
@@ -151,7 +151,7 @@ def query_doc_with_hybrid_search(
             distances, documents, metadatas = map(list, zip(*sorted_items))
         result = {
             "distances": [distances],
-            "documents": [documents]
+            "documents": [documents],
             "metadatas": [metadatas],
         }