diff --git a/default.nix b/default.nix
index 70db29f..39d1e09 100644
--- a/default.nix
+++ b/default.nix
@@ -997,7 +997,7 @@ in
                   DKIM selectors used for signing outgoing mail for this domain.
 
                   When no selector is configured a default selector will be
-                  created with settings inherited from {option}`mailserver.defaults.dkim <mailserver.dkim.defaults.keyLength>`.
+                  created with settings inherited from {option}`mailserver.dkim.defaults <mailserver.dkim.defaults.keyLength>`.
                 '';
                 type = types.attrsOf (
                   types.submodule ({