diff --git a/docs/reference.xml b/docs/reference.xml
index 81ac8e0e..751d6089 100644
--- a/docs/reference.xml
+++ b/docs/reference.xml
@@ -1901,9 +1901,20 @@ echo foo
-
- Hold the current number of lines on the console.
-
+
+ Hold the current number of lines on the console.
+
+
+
+ Sets the language for which a translated server MOTD will be fetched, if the server has one for this language.
+
+ This is always a two-letter language code as defined in the ISO 639 standard, three-letter codes are currently not allowed.
+ If lang is not set, or if the server does not have a matching MOTD file, it will fall back to English.
+ Note: this does not affect the client language, which is derived from the system settings (e.g. on many *nix systems, it may be changed via the "LANG" environment variable).
+
+ en, de, fr, ...
+
+