diff --git a/modules/twainui/dialog_progress_ui.cpp b/modules/twainui/dialog_progress_ui.cpp
index ddf49c40..1cc2ebf7 100644
--- a/modules/twainui/dialog_progress_ui.cpp
+++ b/modules/twainui/dialog_progress_ui.cpp
@@ -18,7 +18,11 @@ Dialog_progress_ui::Dialog_progress_ui(class Manager *mgr, std::function<void (u
 {
     ui->setupUi(this);
 
+#if defined(HG_CMP_MSC)
     setWindowFlags(Qt::SubWindow | Qt::Popup | Qt::WindowStaysOnTopHint);
+#else
+    setWindowFlags(Qt::Dialog | Qt::WindowCloseButtonHint | Qt::WindowStaysOnTopHint);
+#endif
 
     ui->pbtn_cancelScan->setVisible(false);
     ui->pbtn_close->setVisible(false);