_index_header.html.erb in administrate-0.18.0

- old
+ new

@@ -21,8 +21,8 @@
         "administrate.actions.new_resource",
         name: display_resource_name(page.resource_name, singular: true).downcase
       ),
       [:new, namespace, page.resource_path.to_sym],
       class: "button",
-    ) if valid_action?(:new) && show_action?(:new, new_resource) %>
+    ) if accessible_action?(new_resource, :new) %>
   </div>
 </header>