diff --git a/app/controllers/collection_resources_controller.rb b/app/controllers/collection_resources_controller.rb
index 4316eae1c..ff54f875f 100644
--- a/app/controllers/collection_resources_controller.rb
+++ b/app/controllers/collection_resources_controller.rb
@@ -1,7 +1,7 @@
 class CollectionResourcesController < ApplicationController
   include CollectionResourcesHelper
 
-  before_action :authenticate_user!
+  before_action :authenticate_user!, except: %i[download_mandatory_collection_resource]
 
   def index
     render_not_found unless current_user.support?