Index: lib/Padre/Wx/Dialog/Preferences.pm
===================================================================
--- lib/Padre/Wx/Dialog/Preferences.pm	(revision 14019)
+++ lib/Padre/Wx/Dialog/Preferences.pm	(working copy)
@@ -251,6 +251,7 @@
 	my $highlighters          = Padre::MimeTypes->get_highlighters_of_mime_type_name($mime_type_name);
 	my $highlighter_selection = $self->get_widget('highlighters')->GetSelection;
 	my $highlighter           = $highlighters->[$highlighter_selection];
+	$self->{_highlighters_}{$mime_type_name} = $highlighter;
 	$self->get_widget('description')->SetLabel(Padre::MimeTypes->get_highlighter_explanation($highlighter)); 
 }