diff --git a/node_menu_permissions.module b/node_menu_permissions.module
index 96b42fb..436a590 100644
--- a/node_menu_permissions.module
+++ b/node_menu_permissions.module
@@ -27,6 +27,7 @@ function node_menu_permissions_permission() {
   // Generate standard node permissions for all applicable node types.
   $types = node_type_get_types();
   $menus = menu_get_menus();
+  $content_perms = array();
   foreach (node_permissions_get_configured_types() as $type) {
     $type_menus = variable_get('menu_options_' . $type, array('main-menu' => 'main-menu'));