diff --git a/src/widgets/dplatformwindowhandle.cpp b/src/widgets/dplatformwindowhandle.cpp
index 3de8ec6db..eceb4d044 100644
--- a/src/widgets/dplatformwindowhandle.cpp
+++ b/src/widgets/dplatformwindowhandle.cpp
@@ -24,6 +24,10 @@ static QWindow *ensureWindowHandle(QWidget *widget)
         }
 
         window->setAttribute(Qt::WA_NativeWindow);
+        // FIX developer-center#5187 updateIsTranslucent
+        if (window->testAttribute(Qt::WA_TranslucentBackground))
+            window->setAttribute(Qt::WA_OpaquePaintEvent);
+
         handle = window->windowHandle();
         window->setAttribute(Qt::WA_NativeWindow, false);