diff --git a/ui/history/transferhistory.cpp b/ui/history/transferhistory.cpp
--- a/ui/history/transferhistory.cpp
+++ b/ui/history/transferhistory.cpp
@@ -90,7 +90,7 @@
     buttonBox->addButton(QDialogButtonBox::Close);
     m_verticalLayout->addWidget(buttonBox);
     
-    layout()->addWidget(mainWidget);
+    setLayout(m_verticalLayout);
 
     watcher = new QFileSystemWatcher();
     watcher->addPath(QStandardPaths::writableLocation(QStandardPaths::DataLocation) + QLatin1Char('/') + QString());