diff --git a/src/slic3r/GUI/MainFrame.cpp b/src/slic3r/GUI/MainFrame.cpp
index bc38148e8a..6a14bdbb01 100644
--- a/src/slic3r/GUI/MainFrame.cpp
+++ b/src/slic3r/GUI/MainFrame.cpp
@@ -979,7 +979,7 @@ bool MainFrame::preview_only_hint()
         });
         confirm_dlg.update_btn_label(_L("Yes"), _L("No"));
         auto filename = wxString((m_plater->get_preview_only_filename()).c_str(), wxConvUTF8);
-        confirm_dlg.update_text(filename + _L(" needs to be closed before creating a new model. Do you want to continue?"));
+        confirm_dlg.update_text(filename + _L(" will be closed before creating a new model. Do you want to continue?"));
         confirm_dlg.on_show();
         if (preview_only_to_editor) {
             m_plater->new_project();
diff --git a/src/slic3r/GUI/Plater.cpp b/src/slic3r/GUI/Plater.cpp
index 5da8756e9f..1364c93cb0 100644
--- a/src/slic3r/GUI/Plater.cpp
+++ b/src/slic3r/GUI/Plater.cpp
@@ -6477,8 +6477,11 @@ void Plater::priv::set_project_filename(const wxString& filename)
     //BBS
     wxString project_name = from_u8(full_path.filename().string());
     set_project_name(project_name);
+    // record filename for hint when open exported file/.gcode
     if (q->m_only_gcode)
         q->m_preview_only_filename = std::string((project_name + ".gcode").mb_str());
+    if (q->m_exported_file)
+        q->m_preview_only_filename = std::string((project_name + ".3mf").mb_str());
 
     wxGetApp().mainframe->update_title();
 
@@ -8498,9 +8501,6 @@ bool Plater::open_3mf_file(const fs::path &file_path)
         }
     }
 
-    // record filename for hint when open exported file
-    m_preview_only_filename = filename;
-
     return true;
 }