diff --git a/src/corelib/plugin/qplugin.h b/src/corelib/plugin/qplugin.h
index d53182f1a9c..1b121f35e90 100644
--- a/src/corelib/plugin/qplugin.h
+++ b/src/corelib/plugin/qplugin.h
@@ -166,7 +166,7 @@ void Q_CORE_EXPORT qRegisterStaticPluginFunction(QStaticPlugin staticPlugin);
     static QT_PREPEND_NAMESPACE(QObject) *qt_plugin_instance_##PLUGINCLASSNAME() \
     Q_PLUGIN_INSTANCE(PLUGINCLASS) \
     static QPluginMetaData qt_plugin_query_metadata_##PLUGINCLASSNAME() \
-        { return { qt_pluginMetaData, sizeof qt_pluginMetaData }; } \
+        { return { qt_pluginMetaData_##PLUGINCLASSNAME, sizeof qt_pluginMetaData_##PLUGINCLASSNAME }; } \
     const QT_PREPEND_NAMESPACE(QStaticPlugin) qt_static_plugin_##PLUGINCLASSNAME() { \
         return { qt_plugin_instance_##PLUGINCLASSNAME, qt_plugin_query_metadata_##PLUGINCLASSNAME}; \
     }
@@ -174,7 +174,7 @@ void Q_CORE_EXPORT qRegisterStaticPluginFunction(QStaticPlugin staticPlugin);
 #  define QT_MOC_EXPORT_PLUGIN(PLUGINCLASS, PLUGINCLASSNAME) \
     static QT_PREPEND_NAMESPACE(QObject) *qt_plugin_instance_##PLUGINCLASSNAME() \
     Q_PLUGIN_INSTANCE(PLUGINCLASS) \
-    static const char *qt_plugin_query_metadata_##PLUGINCLASSNAME() { return reinterpret_cast<const char *>(qt_pluginMetaData); } \
+    static const char *qt_plugin_query_metadata_##PLUGINCLASSNAME() { return reinterpret_cast<const char *>(qt_pluginMetaData_##PLUGINCLASSNAME); } \
     const QT_PREPEND_NAMESPACE(QStaticPlugin) qt_static_plugin_##PLUGINCLASSNAME() { \
         QT_PREPEND_NAMESPACE(QStaticPlugin) plugin = { qt_plugin_instance_##PLUGINCLASSNAME, qt_plugin_query_metadata_##PLUGINCLASSNAME}; \
         return plugin; \
@@ -187,7 +187,7 @@ void Q_CORE_EXPORT qRegisterStaticPluginFunction(QStaticPlugin staticPlugin);
 #  define QT_MOC_EXPORT_PLUGIN(PLUGINCLASS, PLUGINCLASSNAME)      \
             Q_EXTERN_C Q_DECL_EXPORT \
             QPluginMetaData qt_plugin_query_metadata() \
-            { return { qt_pluginMetaData, sizeof qt_pluginMetaData }; } \
+            { return { qt_pluginMetaData_##PLUGINCLASSNAME, sizeof qt_pluginMetaData_##PLUGINCLASSNAME }; } \
             Q_EXTERN_C Q_DECL_EXPORT QT_PREPEND_NAMESPACE(QObject) *qt_plugin_instance() \
             Q_PLUGIN_INSTANCE(PLUGINCLASS)
 
@@ -196,7 +196,7 @@ void Q_CORE_EXPORT qRegisterStaticPluginFunction(QStaticPlugin staticPlugin);
 #  define QT_MOC_EXPORT_PLUGIN(PLUGINCLASS, PLUGINCLASSNAME)      \
             Q_EXTERN_C Q_DECL_EXPORT \
             const char *qt_plugin_query_metadata() \
-            { return reinterpret_cast<const char *>(qt_pluginMetaData); } \
+            { return reinterpret_cast<const char *>(qt_pluginMetaData_##PLUGINCLASSNAME); } \
             Q_EXTERN_C Q_DECL_EXPORT QT_PREPEND_NAMESPACE(QObject) *qt_plugin_instance() \
             Q_PLUGIN_INSTANCE(PLUGINCLASS)
 
diff --git a/src/tools/moc/generator.cpp b/src/tools/moc/generator.cpp
index 1853d9df528..9fd61a34c3c 100644
--- a/src/tools/moc/generator.cpp
+++ b/src/tools/moc/generator.cpp
@@ -1846,11 +1846,12 @@ void Generator::generatePluginMetaData()
     if (cdef->pluginData.iid.isEmpty())
         return;
 
-    fputs("\nQT_PLUGIN_METADATA_SECTION\n"
-          "static constexpr unsigned char qt_pluginMetaData[] = {\n"
+    fprintf(out, "\nQT_PLUGIN_METADATA_SECTION\n"
+          "static constexpr unsigned char qt_pluginMetaData_%s[] = {\n"
           "    'Q', 'T', 'M', 'E', 'T', 'A', 'D', 'A', 'T', 'A', ' ', '!',\n"
           "    // metadata version, Qt version, architectural requirements\n"
-          "    0, QT_VERSION_MAJOR, QT_VERSION_MINOR, qPluginArchRequirements(),", out);
+          "    0, QT_VERSION_MAJOR, QT_VERSION_MINOR, qPluginArchRequirements(),",
+          cdef->classname.constData());
 
 
     CborDevice dev(out);