diff --git a/dev-upgrade/elastic/logstash-alert.yaml b/dev-upgrade/elastic/logstash-alert.yaml
index a82f83e..8ecc754 100644
--- a/dev-upgrade/elastic/logstash-alert.yaml
+++ b/dev-upgrade/elastic/logstash-alert.yaml
@@ -54,7 +54,7 @@ data:
         command => "/usr/local/bin/log-alert.sh '%{@timestamp}' '%{serviceName}' '%{env}' '%{level}' '%{message}'"
       }
     }
-logstash.yml: |-
+  logstash.yml: |-
     http.host: "0.0.0.0"
     xpack.monitoring.elasticsearch.hosts: [ "http://elastic:9200" ]