diff --git a/RELEASING b/RELEASING
index c2277a3..519da93 100644
--- a/RELEASING
+++ b/RELEASING
@@ -9,7 +9,6 @@ cabal configure
 ./dist/setup/setup sdist
 tar xf dist/encoding-version.tar.gz
 rm -r encoding-version/dist
-tar cf dist/encoding-version.tar encoding-version
+tar --format=ustar -czf dist/encoding-version.tar.gz encoding-version
 rm -r encoding-version
-gzip -f dist/encoding-version.tar
 cabal upload dist/encoding-version.tar