diff --git a/api/v1/swagger/paths/return_claims.json b/api/v1/swagger/paths/return_claims.json
index 2141f9168d..39eada0d35 100644
--- a/api/v1/swagger/paths/return_claims.json
+++ b/api/v1/swagger/paths/return_claims.json
@@ -286,6 +286,10 @@
               "resolved_by": {
                 "description": "User id for the librarian resolving the claim",
                 "type": "string"
+              },
+              "new_lost_status": {
+                "description": "New lost status to set to the item",
+                "type": "string"
               }
             },
             "additionalProperties": false