diff --git a/models/system-messages.model b/models/system-messages.model
index 57519da19..687eeb304 100644
--- a/models/system-messages.model
+++ b/models/system-messages.model
@@ -3,7 +3,7 @@
 SystemMessage json
     from                UTCTime Maybe -- Message is not shown before this date has passed (never shown, if null)
     to                  UTCTime Maybe -- Message is shown until this date has passed (shown forever, if null)
-    onVolatileClusterSettings SystemMessageVolatileClusterSettings default="'{}'::jsonb" -- Message is shown when given volatile cluster settings have given values
+    onVolatileClusterSettings SystemMessageVolatileClusterSettings default="'[]'::jsonb" -- Message is shown when given volatile cluster settings have given values
     newsOnly            Bool default=false
     authenticatedOnly   Bool -- Show message to all users upon visiting the site or only upon login?
     severity            MessageStatus -- Success, Warning, Error, Info, ...