diff --git a/doc/man/wesnoth.6 b/doc/man/wesnoth.6
index a779d6765847..325b0e58710b 100644
--- a/doc/man/wesnoth.6
+++ b/doc/man/wesnoth.6
@@ -131,10 +131,12 @@ Example:
 sets the severity level of the log domains.
 .B all
 can be used to match any log domain. Available levels:
-.BR error ,\  warning ,\  info ,\  debug .
+.BR error ,\  warning ,\  info ,\  debug ,\  none .
 By default the
 .B error
-level is used.
+level is used for most domains, but
+.B deprecation
+defaults to none.
 .TP
 .B --log-precise
 shows the timestamps in the logfile with more precision.