diff --git a/elasticsearch/config/load_settings.sh b/elasticsearch/config/load_settings.sh
index bac61378..d41b5cf9 100644
--- a/elasticsearch/config/load_settings.sh
+++ b/elasticsearch/config/load_settings.sh
@@ -15,6 +15,11 @@ else
   wazuh_url="${WAZUH_API_URL}"
 fi
 
+if [ "x${ELASTICSEARCH_USERNAME}" = "x"]; then
+  auth=""
+else
+  auth="--user ${ELASTICSEARCH_USERNAME}:${ELASTICSEARCH_PASSWORD}"
+fi
 
 until curl -XGET $el_url; do
   >&2 echo "Elastic is unavailable - sleeping"
@@ -27,7 +32,7 @@ done
 
 sed -i 's|    "index.refresh_interval": "5s"|    "index.refresh_interval": "5s",    "number_of_shards" :   '"${ALERTS_SHARDS}"',    "number_of_replicas" : '"${ALERTS_REPLICAS}"'|' /usr/share/elasticsearch/config/wazuh-elastic6-template-alerts.json
 
-cat /usr/share/elasticsearch/config/wazuh-elastic6-template-alerts.json | curl -XPUT "$el_url/_template/wazuh" -H 'Content-Type: application/json' -d @-
+cat /usr/share/elasticsearch/config/wazuh-elastic6-template-alerts.json | curl -XPUT "$el_url/_template/wazuh" ${auth} -H 'Content-Type: application/json' -d @-
 sleep 5
 
 
@@ -38,7 +43,7 @@ API_PASSWORD=`echo -n $API_PASS_Q | base64`
 echo "Setting API credentials into Wazuh APP"
 CONFIG_CODE=$(curl -s -o /dev/null -w "%{http_code}" -XGET $el_url/.wazuh/wazuh-configuration/1513629884013)
 if [ "x$CONFIG_CODE" = "x404" ]; then
-  curl -s -XPOST $el_url/.wazuh/wazuh-configuration/1513629884013 -H 'Content-Type: application/json' -d'
+  curl -s -XPOST ${auth} $el_url/.wazuh/wazuh-configuration/1513629884013 -H 'Content-Type: application/json' -d'
   {
     "api_user": "'"$API_USER_Q"'",
     "api_password": "'"$API_PASSWORD"'",