diff --git a/useful_elasticsearch_commands.md b/useful_elasticsearch_commands.md
index 11de8ef..f21f3e7 100644
--- a/useful_elasticsearch_commands.md
+++ b/useful_elasticsearch_commands.md
@@ -18,6 +18,12 @@ Get version details of elasticsearch
 curl -X GET "localhost:9200"
 ```
 
+Delete an index
+
+```bash
+curl -X DELETE "localhost:9200/graylog_20"
+```
+
 Get current health
 
 ```bash