1 files changed, 1 insertions, 1 deletions
diff --git a/src/corelib/text/qlocale.cpp b/src/corelib/text/qlocale.cpp
index c1491f0f15..dd92cfe354 100644
--- a/src/corelib/text/qlocale.cpp
+++ b/src/corelib/text/qlocale.cpp
@@ -792,7 +792,7 @@ static const QLocaleData *systemData()
       one thread.
     */
     {
-        static QBasicMutex systemDataMutex;
+        Q_CONSTINIT static QBasicMutex systemDataMutex;
         systemDataMutex.lock();
         if (systemLocaleData.m_language_id == 0)
             updateSystemPrivate();