diff --git a/Lib/test/test_shutil.py b/Lib/test/test_shutil.py
index 648a2cd..9f14fd8 100644
--- a/Lib/test/test_shutil.py
+++ b/Lib/test/test_shutil.py
@@ -469,6 +469,7 @@
 
         # check if the compressed tarball was created
         tarball = base_name + '.zip'
+        self.assertTrue(os.path.exists(tarball))
 
 
     def test_make_archive(self):