diff --git a/src/gui/kernel/qguiapplication.cpp b/src/gui/kernel/qguiapplication.cpp
index 84f22de3229..f9b38d2e6d0 100644
--- a/src/gui/kernel/qguiapplication.cpp
+++ b/src/gui/kernel/qguiapplication.cpp
@@ -1207,6 +1207,10 @@ void QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePriv
         QGuiApplicationPrivate::processPlatformPanelEvent(
                     static_cast<QWindowSystemInterfacePrivate::PlatformPanelEvent *>(e));
         break;
+    case QWindowSystemInterfacePrivate::FileOpen:
+        QGuiApplicationPrivate::processFileOpenEvent(
+                    static_cast<QWindowSystemInterfacePrivate::FileOpenEvent *>(e));
+        break;
     default:
         qWarning() << "Unknown user input event type:" << e->type;
         break;