diff --git a/tests/auto/corelib/serialization/qtextstream/tst_qtextstream.cpp b/tests/auto/corelib/serialization/qtextstream/tst_qtextstream.cpp
index e6108f361a9..330106bd6d5 100644
--- a/tests/auto/corelib/serialization/qtextstream/tst_qtextstream.cpp
+++ b/tests/auto/corelib/serialization/qtextstream/tst_qtextstream.cpp
@@ -1203,7 +1203,7 @@ void tst_QTextStream::stillOpenWhenAtEnd()
 
     QTcpSocket socket;
     socket.connectToHost(QtNetworkSettings::imapServerName(), 143);
-    QVERIFY(socket.waitForReadyRead(5000));
+    QTRY_VERIFY_WITH_TIMEOUT(socket.bytesAvailable() > 0, 20000);
 
     QTextStream stream2(&socket);
     while (!stream2.readLine().isNull()) {}