diff --git a/qglview/glwidget.cpp b/qglview/glwidget.cpp
index fbeab80..60ccfde 100644
--- a/qglview/glwidget.cpp
+++ b/qglview/glwidget.cpp
@@ -6,7 +6,7 @@
 
 GLWidget::GLWidget(QWidget *parent) : QWidget(parent) {
 	view_ = new QGLView();
-	view_->setFlag(Qt::FramelessWindowHint);
+	view_->setFlags(windowFlags()() | Qt::FramelessWindowHint);
 	container = QWidget::createWindowContainer(view_, this);
 	lay = new QVBoxLayout(this);
 	lay->addWidget(container);