Index: sources/gui/qml/dialogs/NotificationDialog.qml
===================================================================
diff -u -r3d0a160e4e8c0348c688ed5efe4d86dc66121e6b -rd0a65109913c9f959d594615d3022c040123a008
--- sources/gui/qml/dialogs/NotificationDialog.qml	(.../NotificationDialog.qml)	(revision 3d0a160e4e8c0348c688ed5efe4d86dc66121e6b)
+++ sources/gui/qml/dialogs/NotificationDialog.qml	(.../NotificationDialog.qml)	(revision d0a65109913c9f959d594615d3022c040123a008)
@@ -84,7 +84,7 @@
             onClicked   : _root.minimizeClicked()
         }
 
-        UpDownButton {
+        UpDownButton { id: _minimizeButton
             isUp: false
             anchors {
                 verticalCenter  : _titleBar.verticalCenter