diff --git a/doc/pages/commands.asciidoc b/doc/pages/commands.asciidoc
index f21eba1f..53e84c98 100644
--- a/doc/pages/commands.asciidoc
+++ b/doc/pages/commands.asciidoc
@@ -450,6 +450,10 @@ New commands can be defined using the *define-command* command:
     *-docstring*:::
         define the documentation string for the command
 
+    *-menu*:::
+        the suggestions generated by the completion options are the only
+        permitted parameters.
+
     *-file-completion*:::
         try file completion on any parameter passed to this command