diff --git a/Dockerfiles/snmptraps/README.md b/Dockerfiles/snmptraps/README.md
index b2121c2b0..dfd0f8a46 100644
--- a/Dockerfiles/snmptraps/README.md
+++ b/Dockerfiles/snmptraps/README.md
@@ -83,6 +83,10 @@ 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 7b8f03a78..5db7ff454 100644
--- a/Dockerfiles/snmptraps/rhel/README.html
+++ b/Dockerfiles/snmptraps/rhel/README.html
@@ -34,6 +34,8 @@
The volume contains log file snmptraps.log named with received SNMP traps.
/var/lib/zabbix/mibs
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.
User Feedback
Documentation
Documentation for this image is stored in the snmptraps/ directory of the zabbix/zabbix-docker GitHub repo. Be sure to familiarize yourself with the repository's README.md file before attempting a pull request.