diff --git a/src/plugins/debugger/qml/qmladapter.h b/src/plugins/debugger/qml/qmladapter.h
index e4de53747151e66a5a3853c50bbcd40035df299e..6118a05543f26b40f46f3520e11d3089e1b84941 100644
--- a/src/plugins/debugger/qml/qmladapter.h
+++ b/src/plugins/debugger/qml/qmladapter.h
@@ -37,12 +37,10 @@
 
 #include <QtNetwork/QAbstractSocket>
 
-QT_BEGIN_NAMESPACE
 namespace QmlJsDebugClient {
 class QDeclarativeEngineDebug;
 class QDeclarativeDebugConnection;
 }
-QT_END_NAMESPACE
 
 namespace Debugger {