diff --git a/README.md b/README.md
index d357bcf..71c9d59 100644
--- a/README.md
+++ b/README.md
@@ -144,6 +144,8 @@ prometheus.indices: false
 
 #### Cluster settings
 
+Whether to export cluster settings metrics or not. Default value: `true`.
+
 To disable exporting cluster settings use:
 ```
 prometheus.cluster.settings: false