diff --git a/modules/n8n/module.json b/modules/n8n/module.json
index 5ee86819..04bec8ff 100644
--- a/modules/n8n/module.json
+++ b/modules/n8n/module.json
@@ -35,6 +35,7 @@
       "type": "number",
       "description": "The number of the group that owns the media library on this machine, which the server joins as a supplementary group so a workflow can file into the library (novox/hq ADR 0480 clause 7). Set per machine; until the container takes it from the media library itself (issue 1618) nothing writes a default, so a machine that does not say it refuses n8n by name.",
       "minimum": 1,
+      "required": true,
       "trusted": true
     }
   },