diff --git a/Dockerfile b/Dockerfile
index d6d5bae..0dcd726 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -13,4 +13,6 @@ ENV TARGET_PROTO="tcp"
 ENV TARGET_PORT="514"
 ENV DEBUG="0"
 
+VOLUME [ "/extraconfig" ]
+
 ENTRYPOINT ["/bin/sh", "/run.sh"]
\ No newline at end of file
diff --git a/README.md b/README.md
index f80c330..6ffb16c 100644
--- a/README.md
+++ b/README.md
@@ -21,6 +21,10 @@ Variable      | Default   | Description
  TARGET_PORT  | 514       | target server syslog port
  DEBUG        | 0         | if != 0, every received log line is shown on stdout
 
+## extra config files
+
+You can add some custom config file, by mounting the `/extraconfig` directory. Any file ending in `.conf` placed here will be added to rsyslog configuration.
+
 ## run
 
 ```bash
diff --git a/run.sh b/run.sh
index 9967ea9..6052232 100644
--- a/run.sh
+++ b/run.sh
@@ -54,4 +54,10 @@ action(type="omfwd" protocol="tcp" target="${TARGET_HOST}" port="${TARGET_PORT}"
 EOF
 fi
 
+# extra config
+mkdir -p /extraconfig
+cat >>/etc/rsyslog.conf <<EOF
+$IncludeConfig /etc/rsyslog.d/*.conf
+EOF
+
 /usr/sbin/rsyslogd -nf /etc/rsyslog.conf