diff --git a/src/plugins/qnx/cascadesimport/bardescriptorconverter.h b/src/plugins/qnx/cascadesimport/bardescriptorconverter.h
index 40bc7948e25fa1ee719910066c01a896b8bdcd0b..f162aef4d8410a82c9c2030eb3c98b033715cc09 100644
--- a/src/plugins/qnx/cascadesimport/bardescriptorconverter.h
+++ b/src/plugins/qnx/cascadesimport/bardescriptorconverter.h
@@ -34,8 +34,10 @@
 
 #include <QCoreApplication>
 
+QT_BEGIN_NAMESPACE
 class QDomElement;
 class QDomDocument;
+QT_END_NAMESPACE
 
 namespace Qnx {
 namespace Internal {