diff --git a/nixos/modules/services/scheduling/cron.nix b/nixos/modules/services/scheduling/cron.nix
index 1b5e83173e8..f5e132fd77d 100644
--- a/nixos/modules/services/scheduling/cron.nix
+++ b/nixos/modules/services/scheduling/cron.nix
@@ -39,7 +39,7 @@ in
 
       enable = mkOption {
         type = types.bool;
-        default = true;
+        example = true;
         description = "Whether to enable the Vixie cron daemon.";
       };