diff --git a/app/controllers/devise/invitations_controller.rb b/app/controllers/devise/invitations_controller.rb
index 888bd78c..b73c2874 100644
--- a/app/controllers/devise/invitations_controller.rb
+++ b/app/controllers/devise/invitations_controller.rb
@@ -51,7 +51,7 @@ def update
     yield resource if block_given?
 
     if invitation_accepted
-      if Devise.allow_insecure_sign_in_after_accept
+      if resource.allow_insecure_sign_in_after_accept
         flash_message = resource.active_for_authentication? ? :updated : :updated_not_active
         set_flash_message :notice, flash_message if is_flashing_format?
         sign_in(resource_name, resource)