--- menu_breadcrumb.install.old	2010-04-10 21:00:39.000000000 +0000
+++ menu_breadcrumb.install	2010-04-10 21:00:43.000000000 +0000
@@ -17,6 +17,7 @@ function menu_breadcrumb_uninstall() {
   variable_del('menu_breadcrumb_menus');
   variable_del('menu_breadcrumb_pattern_matches');
   variable_del('menu_breadcrumb_pattern_matches_rebuild');
+  variable_del('menu_breadcrumb_show_frontpage');
 }
 
 /**