diff --git a/src/gui/tray/MainWindow.qml b/src/gui/tray/MainWindow.qml
index c127d6db03..5c8cfe2d0e 100644
--- a/src/gui/tray/MainWindow.qml
+++ b/src/gui/tray/MainWindow.qml
@@ -39,6 +39,7 @@ ApplicationWindow {
     width:      Systray.useNormalWindow ? Style.trayWindowHeight : Style.trayWindowWidth
     height:     Style.trayWindowHeight
     flags:      Systray.useNormalWindow ? Qt.Window : Qt.Dialog | Qt.FramelessWindowHint
+    color: "transparent"
 
     readonly property int maxMenuHeight: Style.trayWindowHeight - Style.trayWindowHeaderHeight - 2 * Style.trayWindowBorderWidth