diff --git a/root/etc/nixos/configuration.nix b/root/etc/nixos/configuration.nix
index 6a1a6a9..529051c 100644
--- a/root/etc/nixos/configuration.nix
+++ b/root/etc/nixos/configuration.nix
@@ -183,13 +183,13 @@
       # 3) Download and extract server pack to /home/h3lp/mineserver
       mkdir -p "$MINESERVER"
       ${pkgs.curl}/bin/curl -L "$SERVERPACK" -o "$TMPDIR/serverpack.tar.xz"
-      ${pkgs.gnutar}/bin/tar -xJf "$TMPDIR/serverpack.tar.xz" -C "$MINESERVER"
+      ${pkgs.xz}/bin/xz -d "$TMPDIR/serverpack.tar.xz" --stdout | ${pkgs.gnutar}/bin/tar -x -C "$MINESERVER"
 
       # 4) Download and extract world to /home/h3lp/mineserver/world
       mkdir -p "$MINESERVER/world"
       ${pkgs.curl}/bin/curl -L "$WORLD" -o "$TMPDIR/world.tar.xz"
       # world.tar.xz contains world folder, otherwise use "$MINESERVER/world"
-      ${pkgs.gnutar}/bin/tar -xJf "$TMPDIR/world.tar.xz" -C "$MINESERVER"
+      ${pkgs.xz}/bin/xz -d "$TMPDIR/world.tar.xz" --stdout | ${pkgs.gnutar}/bin/tar -x -C "$MINESERVER"
 
       # 5) Copy cavemen/* files over, overwriting existing
       cp -rf "$TMPDIR/autodeploy/cavemen/." "$MINESERVER/"