diff --git a/ramls/item.json b/ramls/item.json
index 4824486c3..5ff29e782 100644
--- a/ramls/item.json
+++ b/ramls/item.json
@@ -32,6 +32,7 @@
       "description": "Records the fact that the record should not be displayed in a discovery system"
     },
     "displaySummary": {
+      "description": "Display summary about the item",
       "type": "string"
     },
     "accessionNumber": {