diff --git a/src/slic3r/GUI/MainFrame.cpp b/src/slic3r/GUI/MainFrame.cpp
index 6538c0a9a4..66e22c694f 100644
--- a/src/slic3r/GUI/MainFrame.cpp
+++ b/src/slic3r/GUI/MainFrame.cpp
@@ -228,7 +228,7 @@ DPIFrame(NULL, wxID_ANY, "", wxDefaultPosition, wxDefaultSize, wxDEFAULT_FRAME_S
                 return;
             }
             // check unsaved changes only if project wasn't saved
-            else if (saved_project == wxID_NO && event.CanVeto() && 
+            else if (plater()->is_project_dirty() && saved_project == wxID_NO && event.CanVeto() &&
                      !wxGetApp().check_and_save_current_preset_changes(_L("PrusaSlicer is closing"), _L("Closing PrusaSlicer while some presets are modified."))) {
                 event.Veto();
                 return;