diff --git a/src/corelib/time/qtimezoneprivate_tz.cpp b/src/corelib/time/qtimezoneprivate_tz.cpp
index 50f24346d50..938f8d119a4 100644
--- a/src/corelib/time/qtimezoneprivate_tz.cpp
+++ b/src/corelib/time/qtimezoneprivate_tz.cpp
@@ -902,7 +902,8 @@ QString QTzTimeZonePrivate::displayName(qint64 atMSecsSinceEpoch,
     Q_UNUSED(nameType);
     Q_UNUSED(locale);
 #endif
-    return abbreviation(atMSecsSinceEpoch);
+    // Fall back to base-class:
+    return QTimeZonePrivate::displayName(atMSecsSinceEpoch, nameType, locale);
 }
 
 QString QTzTimeZonePrivate::displayName(QTimeZone::TimeType timeType,