diff --git a/scrutiny/config.json b/scrutiny/config.json
index 1ed3629ab..b5c936c20 100644
--- a/scrutiny/config.json
+++ b/scrutiny/config.json
@@ -71,7 +71,8 @@
   ],
   "schema": {
     "TZ": "str?",
-    "Updates": "list(Hourly|Daily|Weekly)"
+    "Updates": "list(Hourly|Daily|Weekly)",
+    "Mode": "list(Collector+WebUI|Collector)?"
   },
   "slug": "scrutiny",
   "udev": true,