--- src/classes/presentation_controller.vala.orig	2010-07-25 04:54:19.000000000 +0200
+++ src/classes/presentation_controller.vala	2012-06-10 00:02:22.000000000 +0200
@@ -58,6 +58,7 @@
                 break;
                 case 0xff51: /* Cursor left */
                 case 0xff55: /* Page Up */
+                case 0xff08: /* Backspace */
                     this.controllables_previous_page();
                 break;
                 case 0xff1b: /* Escape */