diff --git a/debian/templates/koha-conf-site.xml.in b/debian/templates/koha-conf-site.xml.in
index c35b6d8432..9ae9e47e26 100644
--- a/debian/templates/koha-conf-site.xml.in
+++ b/debian/templates/koha-conf-site.xml.in
@@ -350,6 +350,13 @@ __END_SRU_PUBLICSERVER__
      <server>__ELASTICSEARCH_SERVER__</server> <!-- may be repeated to include all servers on your cluster -->
      <index_name>koha___KOHASITE__</index_name> <!-- should be unique amongst all the indices on your cluster. _biblios and _authorities will be appended. -->
 
+     <!-- If you are using authentication, you will also need to use HTTPS. Uncomment and tweak the following for your ES setup. -->
+     <!-- NOTE: instead of userinfo, you can alternatively provide the username and password in URL in the server element -->
+     <!--
+     <userinfo>elastic:CHANGEME</userinfo>
+     <use_https>1</use_https>
+     -->
+
      <!-- See https://metacpan.org/pod/Search::Elasticsearch#cxn_pool -->
      <cxn_pool>Static</cxn_pool>
      <!-- See https://metacpan.org/pod/Search::Elasticsearch#trace_to -->
diff --git a/etc/koha-conf.xml b/etc/koha-conf.xml
index f7cdd2f8d0..15d49272a0 100644
--- a/etc/koha-conf.xml
+++ b/etc/koha-conf.xml
@@ -167,6 +167,13 @@
      <server>__ELASTICSEARCH_SERVERS__</server>
      <index_name>__ELASTICSEARCH_INDEX_____DB_NAME__</index_name>
 
+     <!-- If you are using authentication, you will also need to use HTTPS. Uncomment and tweak the following for your ES setup. -->
+     <!-- NOTE: instead of userinfo, you can alternatively provide the username and password in URL in the server element -->
+     <!--
+     <userinfo>elastic:CHANGEME</userinfo>
+     <use_https>1</use_https>
+     -->
+
      <!-- See https://metacpan.org/pod/Search::Elasticsearch#cxn_pool -->
      <cxn_pool>Static</cxn_pool>
      <!-- See https://metacpan.org/pod/Search::Elasticsearch#trace_to -->