diff --git a/make_archive.sh b/make_archive.sh
index c1886c9..9a18bd4 100755
--- a/make_archive.sh
+++ b/make_archive.sh
@@ -1 +1 @@
-hg archive out.zip
+XZ_OPTS=-9 tar caf out.tar.xz --owner=0 --group=0 *.go Gopkg* cmd/mkthumb/*.go _dist/README.txt