diff --git a/transmission/config.json b/transmission/config.json
index 82abb4580..65d0961a2 100644
--- a/transmission/config.json
+++ b/transmission/config.json
@@ -20,8 +20,7 @@
     "/dev/sdf2",
     "/dev/sdg2"
   ],
-  "environment": {
-  },
+  "environment": {},
   "map": ["config:rw", "share:rw", "media:rw", "ssl"],
   "name": "Transmission NAS",
   "options": {
@@ -50,7 +49,7 @@
   "schema": {
     "PUID": "int",
     "PGID": "int",
-    "customUI": "list(|combustion-release|transmission-web-control|kettu|flood-for-transmission)?",
+    "customUI": "list(|combustion-release|transmission-web-control|kettu|flood-for-transmission)",
     "TZ": "str?",
     "download_dir": "str",
     "incomplete_dir": "str?",