diff --git a/api/v1/swagger/definitions/allows_renewal.json b/api/v1/swagger/definitions/allows_renewal.json
index 9c40cedcdb..4ee01d6f5b 100644
--- a/api/v1/swagger/definitions/allows_renewal.json
+++ b/api/v1/swagger/definitions/allows_renewal.json
@@ -12,6 +12,10 @@
      "current_renewals": {
       "type": "integer",
       "description": "Current used renewals"
+    },
+     "unseen_renewals": {
+      "type": "integer",
+      "description": "Number of consecutive times the item was renewed without being seen"
     },
     "error": {
       "type": ["string", "null"],