--- mousepad-print.c	2013-06-06 17:17:22.171402463 +0200
+++ mousepad-print_fix_num_printing.c	2013-06-06 17:38:57.251120161 +0200
@@ -502,6 +502,9 @@
   {
     print->print_line_numbers = active;
     gtk_widget_set_sensitive (print->widget_line_numbers_hbox, active);
+    if ( !active )
+      print->line_number_increment = 0;
+      gtk_source_print_compositor_set_print_line_numbers (print->compositor, print->line_number_increment);
   }
   else if (button == print->widget_text_wrapping)
     gtk_source_print_compositor_set_wrap_mode (print->compositor, active ? GTK_WRAP_WORD : GTK_WRAP_NONE);