diff --git a/defaults/main.yml b/defaults/main.yml
index 1210d43..f4c8f67 100644
--- a/defaults/main.yml
+++ b/defaults/main.yml
@@ -3,6 +3,5 @@ opensearch_apt_key_url: https://artifacts.opensearch.org/publickeys/opensearch.p
 opensearch_apt_repo: https://artifacts.opensearch.org/releases/bundle/opensearch/2.x/apt stable main
 opensearch_network_host: 127.0.0.1
 opensearch_http_port: 9200
-opensearch_attachment_max_size: 50
 opensearch_plugin_update_script: update-opensearch-plugins
 opensearch_monit_service: opensearch