diff --git a/_opensearch/reindex-data.md b/_opensearch/reindex-data.md
index 6d51a748..d1601a37 100644
--- a/_opensearch/reindex-data.md
+++ b/_opensearch/reindex-data.md
@@ -70,7 +70,8 @@ POST _reindex
          "host":"https://<REST_endpoint_of_remote_cluster>:9200",
          "username":"YOUR_USERNAME",
          "password":"YOUR_PASSWORD"
-      }
+      },
+      "index": "source"
    },
    "dest":{
       "index":"destination"