diff --git a/Lib/distutils/util.py b/Lib/distutils/util.py
index 63b6bec..22fc437 100644
--- a/Lib/distutils/util.py
+++ b/Lib/distutils/util.py
@@ -746,6 +746,7 @@
         kwargs['compress'] = 'compress'
     elif format == 'tar':
         func = make_tarball
+        kwargs['compress'] = None
     elif format == 'zip':
         func = make_zipfile