diff --git a/src/slic3r/GUI/SelectMachine.cpp b/src/slic3r/GUI/SelectMachine.cpp
index 1f8eb5135..aa86d2dfe 100644
--- a/src/slic3r/GUI/SelectMachine.cpp
+++ b/src/slic3r/GUI/SelectMachine.cpp
@@ -2870,7 +2870,7 @@ void SelectMachineDialog::on_set_finish_mapping(wxCommandEvent &evt)
 void SelectMachineDialog::on_print_job_cancel(wxCommandEvent &evt)
 {
     BOOST_LOG_TRIVIAL(info) << "print_job: canceled";
-    if (m_print_job->get_print_stage() == PrintingStageFinished)
+    if (m_print_job && m_print_job->get_print_stage() == PrintingStageFinished)
     {
         MessageDialog dlg(this, _L("As the print job has been successfully sent, the cancellation will not bring the print job to a halt. If you need to terminate this job, please stop it in 'Device' page."), _L("Info"), wxYES);
         dlg.ShowModal();