diff --git a/config/navigation.rb b/config/navigation.rb
index 7f2b7b3a..f483989f 100644
--- a/config/navigation.rb
+++ b/config/navigation.rb
@@ -12,7 +12,7 @@ SimpleNavigation::Configuration.run do |navigation|
     primary.item :dashboard_nav_item, I18n.t('navigation.dashboard'), root_path(anchor: '')
 
     primary.item :foodcoop, I18n.t('navigation.foodcoop'), '#' do |subnav|
-      subnav.item :members, I18n.t('navigation.members'), foodcoop_users_path, unless: Proc.new { FoodsoftConfig[:disable_members_overview] }
+      subnav.item :members, I18n.t('navigation.members'), foodcoop_users_path, unless: proc { FoodsoftConfig[:disable_members_overview] }
       subnav.item :workgroups, I18n.t('navigation.workgroups'), foodcoop_workgroups_path
       subnav.item :ordergroups, I18n.t('navigation.ordergroups'), foodcoop_ordergroups_path
       subnav.item :tasks, I18n.t('navigation.tasks'), tasks_path