diff --git a/app/controllers/cooperative/base_controller.rb b/app/controllers/cooperative/base_controller.rb
index dfc99b7b8..5d21598aa 100644
--- a/app/controllers/cooperative/base_controller.rb
+++ b/app/controllers/cooperative/base_controller.rb
@@ -10,6 +10,7 @@ class Cooperative::BaseController < ApplicationController
   before_action :laboratory_exist!, :require_login, :require_cooperative_manager!
 
   after_action :rebind_event_if_ajax_render_partial
+  skip_before_action :check_sign
 
   helper_method :current_laboratory, :current_setting_or_default