diff --git a/modules/secrets/secrets.nix b/modules/secrets/secrets.nix
index 64a0554..6c7e0a9 100644
--- a/modules/secrets/secrets.nix
+++ b/modules/secrets/secrets.nix
@@ -60,6 +60,7 @@ in
     };
 
     secretsSetupMethod = mkOption {
+      internal = true;
       type = types.str;
       default = throw  ''
         Error: No secrets setup method has been defined.