diff --git a/pkgs/tinyboot/default.nix b/pkgs/tinyboot/default.nix
index f762e0e..0f076d3 100644
--- a/pkgs/tinyboot/default.nix
+++ b/pkgs/tinyboot/default.nix
@@ -86,6 +86,6 @@ stdenv.mkDerivation {
     runHook postCheck
   '';
 
-  passthru = lib.optionalAttrs withLoader { initrdPath = "tboot-loader.cpio.xz"; };
+  passthru = lib.optionalAttrs withLoader { initrdPath = "tboot-loader.cpio"; };
   meta.platforms = lib.platforms.linux;
 }