diff --git a/lib/options.nix b/lib/options.nix
index b05e53e4cd46..95802fa5c2c5 100644
--- a/lib/options.nix
+++ b/lib/options.nix
@@ -113,7 +113,7 @@ rec {
       : Optional boolean indicating whether the option is for NixOS developers only.
 
       `visible`
-      : Optional boolean indicating whether the option shows up in the manual.
+      : Optional, whether the option and/or sub-options show up in the manual.
         Use false to hide the option and any sub-options from submodules.
         Use "shallow" to hide only sub-options.
         Default: true.