diff --git a/modules/base.nix b/modules/base.nix
index bd1798d..0c675b5 100644
--- a/modules/base.nix
+++ b/modules/base.nix
@@ -27,7 +27,7 @@ in {
     kernel = {
       src = mkOption { type = types.package; } ;
       modular = mkOption {
-        type = types.boolean;
+        type = types.bool;
         default = true;
         description = "support loadable kernel modules";
       };
diff --git a/modules/initramfs.nix b/modules/initramfs.nix
index 5f8b117..85ac3ed 100644
--- a/modules/initramfs.nix
+++ b/modules/initramfs.nix
@@ -12,7 +12,6 @@ in
   options = {
     boot.initramfs = {
       enable = mkEnableOption "enable initramfs";
-      default = false;
     };
     system.outputs.initramfs = mkOption {
       type = types.package;