diff --git a/doc/16-upgrading-icinga-2.md b/doc/16-upgrading-icinga-2.md
index 67d79f4e2..bd801d934 100644
--- a/doc/16-upgrading-icinga-2.md
+++ b/doc/16-upgrading-icinga-2.md
@@ -190,7 +190,7 @@ or with sudo.
 You can use the new `--all` parameter to show all signing requests.
 Note that Icinga automatically purges signed requests older than 1 week.
 
-#### New: CA Remove/Restore <a id="upgrading-to-2-11-cli-commands-ca-remove-restore></a>
+#### New: CA Remove/Restore <a id="upgrading-to-2-11-cli-commands-ca-remove-restore"></a>
 
 `ca remove` allows you to remove pending signing requests. Once the
 master receives a CSR, and it is marked as removed, the request is