diff --git a/cloud/aws/elasticsearch/README.md b/cloud/aws/elasticsearch/README.md
index d149108..70bd27e 100644
--- a/cloud/aws/elasticsearch/README.md
+++ b/cloud/aws/elasticsearch/README.md
@@ -8,6 +8,8 @@ module "datadog-monitors-cloud-aws-elasticsearch" {
 
   environment = "${var.environment}"
   message     = "${module.datadog-message-alerting.alerting-message}"
+
+  es_cluster_volume_size = 42
 }
 
 ```
diff --git a/system/generic/README.md b/system/generic/README.md
index 0186c77..fd85ef1 100644
--- a/system/generic/README.md
+++ b/system/generic/README.md
@@ -8,6 +8,8 @@ module "datadog-monitors-system-generic" {
 
   environment = "${var.environment}"
   message     = "${module.datadog-message-alerting.alerting-message}"
+
+  free_memory_message = "${module.datadog-message-alerting.alerting-message-bh-only}"
 }
 
 ```