upgrade.diff

diff --git a/t/mojo/ioloop_tls.t b/t/mojo/ioloop_tls.t
index 288fb28c3..4892a13b6 100644
--- a/t/mojo/ioloop_tls.t
+++ b/t/mojo/ioloop_tls.t
@@ -33,12 +33,14 @@ use Mojo::IOLoop;
 # Built-in certificate
 my $loop  = Mojo::IOLoop->new;
 my $delay = $loop->delay;
+my $text  = "\x01\x00\x00\x00\x00\x00\xD0\x00\x0A\x00\x0B\x00\x00\x00\x84\x0B";
+utf8::upgrade $text;
 my ($server, $client);
 my $end = $delay->begin;
 my $id  = $loop->server(
   {address => '127.0.0.1', tls => 1} => sub {
     my ($loop, $stream) = @_;
-    $stream->write('test' => sub { shift->write('321') });
+    $stream->write($text => sub { shift->write('321') });
     $stream->on(close => $end);
     $stream->on(read => sub { $server .= pop });
   }
@@ -56,7 +58,7 @@ $loop->client(
 );
 $delay->wait;
 is $server, 'tset123', 'right content';
-is $client, 'test321', 'right content';
+is $client, "${text}321", 'right content';

 # Valid client certificate
 $delay = Mojo::IOLoop->delay;