diff --git a/Dockerfiles/snmptraps/README.md b/Dockerfiles/snmptraps/README.md
index e1f25b835..79a59c571 100644
--- a/Dockerfiles/snmptraps/README.md
+++ b/Dockerfiles/snmptraps/README.md
@@ -85,6 +85,10 @@ The volume contains log file ``snmptraps.log`` named with received SNMP traps.
 
 The volume allows to add new MIB files. It does not support subdirectories, all MIBs must be placed to ``/var/lib/zabbix/mibs``.
 
+### ``/var/lib/zabbix/snmptrapd_config``
+
+The volume various persistent configuration files generated by snmptrapd daemon. The volume is required usually only for SNMPv3 traps. Do not modify manually anything stored in the volume.
+
 # The image variants
 
 The `zabbix-snmptraps` images come in many flavors, each designed for a specific use case.
diff --git a/Dockerfiles/snmptraps/rhel/README.html b/Dockerfiles/snmptraps/rhel/README.html
index 4caa38c8b..31fa4984f 100644
--- a/Dockerfiles/snmptraps/rhel/README.html
+++ b/Dockerfiles/snmptraps/rhel/README.html
@@ -34,6 +34,8 @@
 <p>The volume contains log file <code>snmptraps.log</code> named with received SNMP traps.</p>
 <h3 id="-var-lib-zabbix-mibs-"><code>/var/lib/zabbix/mibs</code></h3>
 <p>The volume allows to add new MIB files. It does not support subdirectories, all MIBs must be placed to <code>/var/lib/zabbix/mibs</code>.</p>
+<h3 id="-var-lib-zabbix-snmptrapd_config-"><code>/var/lib/zabbix/snmptrapd_config</code></h3>
+<p>The volume various persistent configuration files generated by snmptrapd daemon. The volume is required usually only for SNMPv3 traps. Do not modify manually anything stored in the volume.</p>
 <h1 id="user-feedback">User Feedback</h1>
 <h2 id="documentation">Documentation</h2>
 <p>Documentation for this image is stored in the <a href="https://github.com/zabbix/zabbix-docker/tree/6.4/Dockerfiles/snmptraps"><code>snmptraps/</code> directory</a> of the <a href="https://github.com/zabbix/zabbix-docker/"><code>zabbix/zabbix-docker</code> GitHub repo</a>. Be sure to familiarize yourself with the <a href="https://github.com/zabbix/zabbix-docker/blob/6.4/README.md">repository&#39;s <code>README.md</code> file</a> before attempting a pull request.</p>