diff --git a/_Sidebar.md b/_Sidebar.md
index bb31b3d..675383e 100644
--- a/_Sidebar.md
+++ b/_Sidebar.md
@@ -17,6 +17,7 @@
 
 * [Security Disclosure](https://github.com/wekan/wekan/wiki/Security-Disclosure)
 * [Security issues](https://github.com/wekan/wekan/issues?q=is%3Aissue+is%3Aopen+label%3ASecurity)
+* [Webhook and Let's Encrypt](https://github.com/wekan/wekan/wiki/WebHook-And-CA)
 
 ## <a name="Features"></a>Features