diff --git a/nixos/modules/services/hardware/actkbd.nix b/nixos/modules/services/hardware/actkbd.nix
index 4168140b287..daa407ca1f0 100644
--- a/nixos/modules/services/hardware/actkbd.nix
+++ b/nixos/modules/services/hardware/actkbd.nix
@@ -83,7 +83,7 @@ in
 
           See <command>actkbd</command> <filename>README</filename> for documentation.
 
-          The example shows a piece of what <option>sound.enableMediaKeys</option> does when enabled.
+          The example shows a piece of what <option>sound.mediaKeys.enable</option> does when enabled.
         '';
       };