diff --git a/src/plugins/platforms/windows/qtwindowsglobal.h b/src/plugins/platforms/windows/qtwindowsglobal.h
index 96a72600eb9..5b1711fb5aa 100644
--- a/src/plugins/platforms/windows/qtwindowsglobal.h
+++ b/src/plugins/platforms/windows/qtwindowsglobal.h
@@ -116,6 +116,7 @@ enum WindowsEventType // Simplify event types
     NonClientMouseEvent = NonClientEventFlag + MouseEventFlag + 1,
     NonClientHitTest = NonClientEventFlag + 2,
     NonClientCreate = NonClientEventFlag + 3,
+    NonClientActivate = NonClientEventFlag + 4,
     NonClientPointerEvent = NonClientEventFlag + PointerEventFlag + 4,
     KeyEvent = KeyEventFlag + 1,
     KeyDownEvent = KeyEventFlag + KeyDownEventFlag + 1,
@@ -215,6 +216,8 @@ inline QtWindows::WindowsEventType windowsEventType(UINT message, WPARAM wParamI
         return QtWindows::CalculateSize;
     case WM_NCHITTEST:
         return QtWindows::NonClientHitTest;
+    case WM_NCACTIVATE:
+        return QtWindows::NonClientActivate;
     case WM_GETMINMAXINFO:
         return QtWindows::QuerySizeHints;
     case WM_KEYDOWN:                        // keyboard event
diff --git a/src/plugins/platforms/windows/qwindowscontext.cpp b/src/plugins/platforms/windows/qwindowscontext.cpp
index 58514c96e1d..17eef9a95e8 100644
--- a/src/plugins/platforms/windows/qwindowscontext.cpp
+++ b/src/plugins/platforms/windows/qwindowscontext.cpp
@@ -1172,6 +1172,8 @@ bool QWindowsContext::windowsProc(HWND hwnd, UINT message,
             platformWindow->updateCustomTitlebar();
         return platformWindow->handleNonClientHitTest(QPoint(msg.pt.x, msg.pt.y), result);
     }
+    case QtWindows::NonClientActivate:
+        return platformWindow->handleNonClientActivate(result);
     case QtWindows::GeometryChangingEvent:
         return platformWindow->handleGeometryChanging(&msg);
     case QtWindows::ExposeEvent:
diff --git a/src/plugins/platforms/windows/qwindowswindow.cpp b/src/plugins/platforms/windows/qwindowswindow.cpp
index 55abd6dd04a..b14bc42c0a4 100644
--- a/src/plugins/platforms/windows/qwindowswindow.cpp
+++ b/src/plugins/platforms/windows/qwindowswindow.cpp
@@ -3454,6 +3454,18 @@ bool QWindowsWindow::handleNonClientHitTest(const QPoint &globalPos, LRESULT *re
     return false;
 }
 
+bool QWindowsWindow::handleNonClientActivate(LRESULT *result) const
+{
+    // If this window is frameless we choose to consume the event,
+    // since the default logic causes the window title to appear.
+    // QTBUG-127116
+    if (m_data.flags & Qt::FramelessWindowHint) {
+        *result = true;
+        return true;
+    }
+    return false;
+}
+
 static void _q_drawCustomTitleBarButton(QPainter& p, const QRectF& r)
 {
     QPainterPath path(QPointF(r.x(), r.y()));
diff --git a/src/plugins/platforms/windows/qwindowswindow.h b/src/plugins/platforms/windows/qwindowswindow.h
index d8a62160927..7805530681a 100644
--- a/src/plugins/platforms/windows/qwindowswindow.h
+++ b/src/plugins/platforms/windows/qwindowswindow.h
@@ -314,6 +314,7 @@ public:
     void releaseDC();
     void getSizeHints(MINMAXINFO *mmi) const;
     bool handleNonClientHitTest(const QPoint &globalPos, LRESULT *result) const;
+    bool handleNonClientActivate(LRESULT *result) const;
     void updateCustomTitlebar();
 
 #ifndef QT_NO_CURSOR