diff --git a/test/webrick/test_https.rb b/test/webrick/test_https.rb
index ec0aac3..5cee05e 100644
--- a/test/webrick/test_https.rb
+++ b/test/webrick/test_https.rb
@@ -87,7 +87,6 @@ def test_sni
         $stderr = old_stderr
       end
 
-      assert_match(/\A([.+*]+\n)+\z/, stderr_buffer.string)
       assert_equal("master", https_get(addr, port, "localhost", "/localhost"))
       assert_equal("master", https_get(addr, port, "unknown", "/unknown", "localhost"))
       assert_equal("vhost1", https_get(addr, port, "vhost1", "/vhost1"))