diff --git a/EXTERNAL_PLUGINS.md b/EXTERNAL_PLUGINS.md
index 66e9143da..225497e84 100644
--- a/EXTERNAL_PLUGINS.md
+++ b/EXTERNAL_PLUGINS.md
@@ -19,6 +19,7 @@ Pull requests welcome.
 - [dnsmasq](https://github.com/machinly/dnsmasq-telegraf-plugin) - Gather dnsmasq statistics from dnsmasq
 - [ldap_org and ds389](https://github.com/falon/CSI-telegraf-plugins) - Gather statistics from 389ds and from LDAP trees.
 - [x509_crl](https://github.com/jcgonnard/telegraf-input-x590crl) - Gather information from your X509 CRL files
+- [s7comm](https://github.com/nicolasme/s7comm) - Gather information from Siemens PLC
 
 ## Outputs
 - [kinesis](https://github.com/morfien101/telegraf-output-kinesis) - Aggregation and compression of metrics to send Amazon Kinesis.