diff --git a/qbittorrent/config.json b/qbittorrent/config.json
index b2cafaa67..019944372 100644
--- a/qbittorrent/config.json
+++ b/qbittorrent/config.json
@@ -53,7 +53,7 @@
     "PUID": "int",
     "PGID": "int",
     "localdisks": "str?",
-    "customUI": "list(vuetorrent|qbit|null)", 
+    "customUI": "list(vuetorrent|qbit|null)?", 
     "networkdisks": "str?",
     "cifsusername": "str?",
     "cifspassword": "str?",