diff --git a/lib/fudo/initrd-network.nix b/lib/fudo/initrd-network.nix
index 15e79aa..b8ec356 100644
--- a/lib/fudo/initrd-network.nix
+++ b/lib/fudo/initrd-network.nix
@@ -52,7 +52,7 @@ in {
         host-privkey = builtins.toPath "${host-key-pkg}/${key-filename}";
       in {
         secrets = {
-          config.fudo.secrets.host-secrets.${hostname}.initrd-ssh-host-key.target-file = null;
+          ${config.fudo.secrets.host-secrets.${hostname}.initrd-ssh-host-key.target-file} = null;
         };
 
         network = {