diff --git a/SSH-Hardening-Guides.md b/SSH-Hardening-Guides.md
index 76c7852..6dd2f5e 100644
--- a/SSH-Hardening-Guides.md
+++ b/SSH-Hardening-Guides.md
@@ -4,4 +4,5 @@ Official hardening guides are available here: https://www.sshaudit.com/hardening
 
 Unofficial, community-provided guides are below:
 
+* [OPNsense](https://github.com/jtesta/ssh-audit/wiki/OPNsense-SSH-hardening-guide)
 * TODO (create a new page for each system, and link to it in this list)