Index: sources/gui/qml/dialogs/NotificationDialog.qml
===================================================================
diff -u -rcd769413344091cea88a30861b49188c8c147cba -r741b1c70f851810f2c265cdd38dfa158b7ee0c37
--- sources/gui/qml/dialogs/NotificationDialog.qml	(.../NotificationDialog.qml)	(revision cd769413344091cea88a30861b49188c8c147cba)
+++ sources/gui/qml/dialogs/NotificationDialog.qml	(.../NotificationDialog.qml)	(revision 741b1c70f851810f2c265cdd38dfa158b7ee0c37)
@@ -84,7 +84,7 @@
             onClicked   : _root.minimizeClicked()
         }
 
-        UpDownButton {
+        UpDownButton { id: _minimizeButton
             isUp: false
             anchors {
                 verticalCenter  : _titleBar.verticalCenter