diff --git a/lib/Slic3r/GUI/Plater.pm b/lib/Slic3r/GUI/Plater.pm
index 0e011677c..184e21615 100644
--- a/lib/Slic3r/GUI/Plater.pm
+++ b/lib/Slic3r/GUI/Plater.pm
@@ -224,7 +224,6 @@ sub new {
     $self->object_list_changed;
     EVT_BUTTON($self, $self->{btn_export_gcode}, sub {
         $self->export_gcode;
-        Slic3r::thread_cleanup();
     });
     EVT_BUTTON($self, $self->{btn_send_gcode}, sub {
         $self->{send_gcode_file} = $self->export_gcode(Wx::StandardPaths::Get->GetTempDir());