diff --git a/Configuration.md b/Configuration.md
index 28253df..e8aba0d 100644
--- a/Configuration.md
+++ b/Configuration.md
@@ -130,6 +130,7 @@ Settings are stored in [YAML format](https://en.wikipedia.org/wiki/YAML), possib
  * `users` — Web users info
    * `name` — User name
    * `password` — Password
+ * `web_session_ttl` — Web session TTL (in hours) - a web user will stay signed in for this amount of time.
  * `rlimit_nofile` — Limit on the maximum number of open files for server process (Linux and macOS).  Set to 0 to use the system default value.
  * `dns` — DNS configuration section.
    * `bind_host` - DNS interface IP address to listen on.