diff --git a/Lib/test/test_tarfile.py b/Lib/test/test_tarfile.py
index f1aed5ccc6b76b..e0389c5dc474f5 100644
--- a/Lib/test/test_tarfile.py
+++ b/Lib/test/test_tarfile.py
@@ -1031,7 +1031,7 @@ def test_longname_directory(self):
                     os.mkdir(longdir)
                     tar.add(longdir)
                 finally:
-                    os.rmdir(longdir)
+                    os.rmdir(longdir.rstrip("/"))
             with tarfile.open(tmpname) as tar:
                 self.assertIsNotNone(tar.getmember(longdir))
                 self.assertIsNotNone(tar.getmember(longdir.removesuffix('/')))