diff --git a/src/plugins/debugger/debuggeruiswitcher.cpp b/src/plugins/debugger/debuggeruiswitcher.cpp
index 662b90db425..695e3d30835 100644
--- a/src/plugins/debugger/debuggeruiswitcher.cpp
+++ b/src/plugins/debugger/debuggeruiswitcher.cpp
@@ -326,7 +326,6 @@ Utils::FancyMainWindow *DebuggerUISwitcher::mainWindow() const
 QWidget *DebuggerUISwitcher::createMainWindow(Core::BaseMode *mode)
 {
     d->m_mainWindow = new DebuggerMainWindow(this);
-    d->m_mainWindow->setTabPosition(Qt::AllDockWidgetAreas, QTabWidget::North);
     d->m_mainWindow->setDocumentMode(true);
     connect(d->m_mainWindow, SIGNAL(resetLayout()),
             this, SLOT(resetDebuggerLayout()));