diff --git a/src/corelib/text/qlocale.cpp b/src/corelib/text/qlocale.cpp
index 4f5b545264..eff083b3d9 100644
--- a/src/corelib/text/qlocale.cpp
+++ b/src/corelib/text/qlocale.cpp
@@ -1112,10 +1112,13 @@ QLocale::QLocale(QStringView name)
 */
 
 QLocale::QLocale()
-    : d(*defaultLocalePrivate)
+    : d(c_private())
 {
-    // Make sure system data is up to date:
-    systemData();
+    if (!defaultLocalePrivate.isDestroyed()) {
+        // Make sure system data is up to date:
+        systemData();
+        d = *defaultLocalePrivate;
+    }
 }
 
 /*!