diff --git a/src/corelib/tools/qdatetime.cpp b/src/corelib/tools/qdatetime.cpp
index 191fcf8cfd..aaa639272c 100644
--- a/src/corelib/tools/qdatetime.cpp
+++ b/src/corelib/tools/qdatetime.cpp
@@ -4965,7 +4965,8 @@ QDebug operator<<(QDebug dbg, const QTime &time)
 QDebug operator<<(QDebug dbg, const QDateTime &date)
 {
     QDebugStateSaver saver(dbg);
-    dbg.nospace() << "QDateTime(" << date.toString(QStringLiteral("yyyy-MM-dd HH:mm:ss.zzz t"))
+    dbg.nospace() << "QDateTime(";
+    dbg.noquote() << date.toString(QStringLiteral("yyyy-MM-dd HH:mm:ss.zzz t"))
                   << ' ' << date.timeSpec();
     switch (date.d->m_spec) {
     case Qt::UTC:
diff --git a/tests/auto/corelib/io/qnodebug/tst_qnodebug.cpp b/tests/auto/corelib/io/qnodebug/tst_qnodebug.cpp
index ae08a4631d..5ece9190a5 100644
--- a/tests/auto/corelib/io/qnodebug/tst_qnodebug.cpp
+++ b/tests/auto/corelib/io/qnodebug/tst_qnodebug.cpp
@@ -70,7 +70,7 @@ void tst_QNoDebug::streaming() const
 {
     QDateTime dt(QDate(1,2,3),QTime(4,5,6));
     const QString debugString = dt.toString(QStringLiteral("yyyy-MM-dd HH:mm:ss.zzz t"));
-    QTest::ignoreMessage(QtWarningMsg, qPrintable(QString::fromLatin1("QDateTime(\"%1\" Qt::TimeSpec(LocalTime))").arg(debugString)));
+    QTest::ignoreMessage(QtWarningMsg, qPrintable(QString::fromLatin1("QDateTime(%1 Qt::TimeSpec(LocalTime))").arg(debugString)));
     qWarning() << dt;
 }