diff --git a/src/gui/project_view/projectwindow.cpp b/src/gui/project_view/projectwindow.cpp
index 6daf966128145840bbc2d9b0e5c4ba586018168a..cd011258e5c20ac5b923ad3f54a165eb97898097 100644
--- a/src/gui/project_view/projectwindow.cpp
+++ b/src/gui/project_view/projectwindow.cpp
@@ -510,7 +510,15 @@ void ProjectWindow::viewError(QString error) {
 
 void ProjectWindow::doAcceptedLabelingMethod() {
     qDebug() << "ProjectWindow::doAcceptedLabelingMethod";
+    showWaitingMessage(tr("Apply labeling method"));
+
     LabelingMethodSp labeling_method_sp = _p_edit_label_methods->getLabelingMethodSp();
     _project_sp.get()->setLabelingMethodSp(labeling_method_sp);
     //_p_edit_label_methods->applyLabelingMethodInProject();
+
+    doDisplayLoadingMessage(tr("labeling peptides"));
+
+    qDebug() << "ProjectWindow::doAcceptedLabelingMethod emit operateGrouping(_project_sp) ";
+    emit operateGrouping(_project_sp);
+
 }