diff --git a/flake.nix b/flake.nix
--- a/flake.nix
+++ b/flake.nix
@@ -61,7 +61,7 @@ options = {
             crashkeys.services.audsite = {
               enable = lib.mkEnableOption "Enables the crashkeys.dev web server";
               system = lib.mkOption {
-                type = lib.types.enum [ supportedSystems ];
+                type = lib.types.enum supportedSystems;
                 example = "x86_64-linux";
                 description = "The architecture of the system for which to run the web server.";
               };