diff --git a/ansible-role-elasticsearch/defaults/main.yml b/ansible-role-elasticsearch/defaults/main.yml
index 93feb04f..e7e38bd0 100644
--- a/ansible-role-elasticsearch/defaults/main.yml
+++ b/ansible-role-elasticsearch/defaults/main.yml
@@ -3,5 +3,5 @@ elasticsearch_cluster_name: wazuh
 elasticsearch_node_name: node-1
 elasticsearch_http_port: 9200
 elasticsearch_network_host: 127.0.0.1
-elasticsearch_jvm_xms: 2000
+elasticsearch_jvm_xms: null
 elastic_stack_version: 5.5.0