diff --git a/app/controllers/api/v1/custom_emojis_controller.rb b/app/controllers/api/v1/custom_emojis_controller.rb
index 76bc2b18ad..4c056c952e 100644
--- a/app/controllers/api/v1/custom_emojis_controller.rb
+++ b/app/controllers/api/v1/custom_emojis_controller.rb
@@ -2,6 +2,7 @@
 
 class Api::V1::CustomEmojisController < Api::BaseController
   vary_by '', unless: :disallow_unauthenticated_api_access?
+  skip_before_action :require_authenticated_user!, unless: :whitelist_mode?
 
   def index
     cache_even_if_authenticated! unless disallow_unauthenticated_api_access?