diff --git a/src/corelib/global/qtconfigmacros.h b/src/corelib/global/qtconfigmacros.h
index 51f6e651bc1..7d42b13c540 100644
--- a/src/corelib/global/qtconfigmacros.h
+++ b/src/corelib/global/qtconfigmacros.h
@@ -4,6 +4,9 @@
 #ifndef QTCONFIGMACROS_H
 #define QTCONFIGMACROS_H
 
+#if 0
+#  pragma qt_sync_stop_processing
+#endif
 #ifdef QT_BOOTSTRAPPED
 // qconfig-bootstrapped.h is not supposed to be a part of the synced header files. So we find it by
 // the include path specified for Bootstrap library in the source tree instead of the build tree as
@@ -154,8 +157,4 @@ namespace QT_NAMESPACE {}
 # define QT_END_MOC_NAMESPACE
 #endif
 
-/* silence syncqt warning */
-QT_BEGIN_NAMESPACE
-QT_END_NAMESPACE
-
 #endif /* QTCONFIGMACROS_H */