diff --git a/tests/auto/corelib/tools/qlocale/tst_qlocale.cpp b/tests/auto/corelib/tools/qlocale/tst_qlocale.cpp
index 299ae104f1..40b5b3f935 100644
--- a/tests/auto/corelib/tools/qlocale/tst_qlocale.cpp
+++ b/tests/auto/corelib/tools/qlocale/tst_qlocale.cpp
@@ -1136,6 +1136,8 @@ void tst_QLocale::macDefaultLocale()
     QCOMPARE(locale.decimalPoint(), QChar('.'));
     QCOMPARE(locale.groupSeparator(), QChar(','));
     QCOMPARE(locale.dateFormat(QLocale::ShortFormat), QString("M/d/yy"));
+    if (QSysInfo::MacintoshVersion > QSysInfo::MV_10_6)
+        QEXPECT_FAIL("", "QTBUG-27790", Continue);
     QCOMPARE(locale.dateFormat(QLocale::LongFormat), QString("MMMM d, yyyy"));
     QCOMPARE(locale.timeFormat(QLocale::ShortFormat), QString("h:mm AP"));
     QCOMPARE(locale.timeFormat(QLocale::LongFormat), QString("h:mm:ss AP t"));