diff --git a/backend/open_webui/retrieval/loaders/main.py b/backend/open_webui/retrieval/loaders/main.py
index 19d590f5c..7fa24ced3 100644
--- a/backend/open_webui/retrieval/loaders/main.py
+++ b/backend/open_webui/retrieval/loaders/main.py
@@ -77,6 +77,7 @@ known_source_ext = [
     "jsx",
     "hs",
     "lhs",
+    "json",
 ]