diff --git a/Lib/test/test_xmlrpc.py b/Lib/test/test_xmlrpc.py
index dc37be2bf1a..9880f4abd05 100644
--- a/Lib/test/test_xmlrpc.py
+++ b/Lib/test/test_xmlrpc.py
@@ -909,7 +909,7 @@ class GzipUtilTestCase(unittest.TestCase):
         encoded = xmlrpclib.gzip_encode(data)
 
         with self.assertRaisesRegex(ValueError,
-                                     "max gzipped payload length exceeded"):
+                                    "max gzipped payload length exceeded"):
             xmlrpclib.gzip_decode(encoded)
 
         xmlrpclib.gzip_decode(encoded, max_decode=-1)