diff --git a/_Sidebar.md b/_Sidebar.md
index 5c5ca09..e84c92d 100644
--- a/_Sidebar.md
+++ b/_Sidebar.md
@@ -42,4 +42,5 @@
 1. [[Running the server with non-root-user|Running-the-server-with-non-root-user]]
 1. [[Using a Private CA and making SSL certs work with Chrome|Private-CA-and-self-signed-certs-that-work-with-Chrome]]
 1. [[Differences from the upstream API implementation|Differences-from-the-upstream-API-implementation]]
-1. [[Supporting upstream development|Supporting-upstream]]
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+1. [[Supporting upstream development|Supporting-upstream]]
+1. [[Hardening Guide (WIP)|Hardening Guide (WIP)]]
\ No newline at end of file