diff --git a/src/plugins/styles/modernwindows/qwindows11style.cpp b/src/plugins/styles/modernwindows/qwindows11style.cpp
index 53f6051d06e..ac3fbbba8ee 100644
--- a/src/plugins/styles/modernwindows/qwindows11style.cpp
+++ b/src/plugins/styles/modernwindows/qwindows11style.cpp
@@ -2118,7 +2118,8 @@ void QWindows11Style::polish(QWidget* widget)
         bool layoutDirection = widget->testAttribute(Qt::WA_RightToLeft);
         widget->setAttribute(Qt::WA_OpaquePaintEvent,false);
         widget->setAttribute(Qt::WA_TranslucentBackground);
-        widget->setWindowFlag(Qt::FramelessWindowHint);
+        if (!isScrollBar)
+            widget->setWindowFlag(Qt::FramelessWindowHint);
         widget->setWindowFlag(Qt::NoDropShadowWindowHint);
         widget->setAttribute(Qt::WA_RightToLeft, layoutDirection);
         widget->setAttribute(Qt::WA_WState_Created, wasCreated);