diff --git a/src/mmg/jobs.cpp b/src/mmg/jobs.cpp
index 4c3c11c9f..148580840 100644
--- a/src/mmg/jobs.cpp
+++ b/src/mmg/jobs.cpp
@@ -736,14 +736,20 @@ job_dialog::on_item_selected(wxListEvent &evt) {
 void
 job_dialog::start_jobs(vector<int> &jobs_to_start) {
   wxString temp_settings;
-  job_run_dialog *dlg;
   int i;
 
   temp_settings.Printf(wxT("%s/jobs/temp.mmg"), wxGetCwd().c_str());
   mdlg->save(temp_settings, true);
 
-  dlg = new job_run_dialog(this, jobs_to_start);
-  delete dlg;
+#ifdef SYS_WINDOWS
+  mdlg->Show(false);
+  Show(false);
+#endif
+  delete new job_run_dialog(this, jobs_to_start);
+#ifdef SYS_WINDOWS
+  mdlg->Show(true);
+  Show(true);
+#endif
 
   mdlg->load(temp_settings, true);
   wxRemoveFile(temp_settings);
diff --git a/src/mmg/mmg.cpp b/src/mmg/mmg.cpp
index f05b5caf8..82f7940e1 100644
--- a/src/mmg/mmg.cpp
+++ b/src/mmg/mmg.cpp
@@ -942,8 +942,6 @@ mmg_dialog::set_last_chapters_in_menu(wxString name) {
 
 void
 mmg_dialog::on_run(wxCommandEvent &evt) {
-  mux_dialog *mux_dlg;
-
   update_command_line();
 
   if (tc_output->GetValue().Length() == 0) {
@@ -966,8 +964,13 @@ mmg_dialog::on_run(wxCommandEvent &evt) {
     return;
 
   set_on_top(false);
-  mux_dlg = new mux_dialog(this);
-  delete mux_dlg;
+#ifdef SYS_WINDOWS
+  Show(false);
+#endif
+  delete new mux_dialog(this);
+#ifdef SYS_WINDOWS
+  Show(true);
+#endif
   restore_on_top();
 }