diff --git a/nixos/modules/tasks/bcache.nix b/nixos/modules/tasks/bcache.nix
index ba34498746227..d2c816d663f94 100644
--- a/nixos/modules/tasks/bcache.nix
+++ b/nixos/modules/tasks/bcache.nix
@@ -11,6 +11,8 @@ in {
 
       Whether to enable bcache support in the initrd.
     '';
+    default = config.boot.initrd.systemd.enable && config.boot.bcache.enable;
+    defaultText = lib.literalExpression "config.boot.initrd.systemd.enable && config.boot.bcache.enable";
   };
 
   config = lib.mkIf cfg.enable {
diff --git a/nixos/modules/tasks/lvm.nix b/nixos/modules/tasks/lvm.nix
index 0b628725969a8..4d1018978eaf1 100644
--- a/nixos/modules/tasks/lvm.nix
+++ b/nixos/modules/tasks/lvm.nix
@@ -31,6 +31,8 @@ in {
 
       Whether to enable booting from LVM2 in the initrd.
     '';
+    default = config.boot.initrd.systemd.enable && config.services.lvm.enable;
+    defaultText = lib.literalExpression "config.boot.initrd.systemd.enable && config.services.lvm.enable";
   };
 
   config = mkMerge [