diff --git a/lib/Slic3r/GUI/Tab.pm b/lib/Slic3r/GUI/Tab.pm
index 240a79d86..3753bbb90 100644
--- a/lib/Slic3r/GUI/Tab.pm
+++ b/lib/Slic3r/GUI/Tab.pm
@@ -71,8 +71,8 @@ sub new {
             or return;
         $_->Hide for @{$self->{pages}};
         $self->{sizer}->Detach(1);
-        $page->Show;
         $self->{sizer}->Add($page, 1, wxEXPAND | wxLEFT, 5);
+        $page->Show;
         $self->{sizer}->Layout;
         $self->Refresh;
     });