diff --git a/frame/item/components/appdragwidget.cpp b/frame/item/components/appdragwidget.cpp
index 6a3070714..cbbb14ec7 100644
--- a/frame/item/components/appdragwidget.cpp
+++ b/frame/item/components/appdragwidget.cpp
@@ -76,6 +76,8 @@ AppDragWidget::AppDragWidget(QWidget *parent) :
 
     setWindowFlags(Qt::WindowStaysOnTopHint | Qt::X11BypassWindowManagerHint);
     setAttribute(Qt::WA_TranslucentBackground);
+    viewport()->setAutoFillBackground(false);
+    setFrameShape(QFrame::NoFrame);
     setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
     setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
     setMouseTracking(true);