diff --git a/src/qtgui/mainwindow.cpp b/src/qtgui/mainwindow.cpp
index ce28b02d..cf7b6a16 100644
--- a/src/qtgui/mainwindow.cpp
+++ b/src/qtgui/mainwindow.cpp
@@ -1126,6 +1126,8 @@ void MainWindow::on_actionStop_triggered() {
 	} else if (context->mode == ERender) {
 		context->mode = EPreview;
 	}
+	ui->glView->resumePreview();
+
 	updateUI();
 }