diff --git a/app/helpers/theme_helper.rb b/app/helpers/theme_helper.rb
index e16086aaeb..7e4fd0a002 100644
--- a/app/helpers/theme_helper.rb
+++ b/app/helpers/theme_helper.rb
@@ -26,7 +26,7 @@ module ThemeHelper
   def custom_stylesheet
     if active_custom_stylesheet.present?
       stylesheet_link_tag(
-        "/css/#{active_custom_stylesheet}.css", # custom_css_path(active_custom_stylesheet),
+        custom_css_path(active_custom_stylesheet),
         host: root_url,
         media: :all,
         skip_pipeline: true
diff --git a/config/routes.rb b/config/routes.rb
index 6b42b85c86..1f219a09e3 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -55,7 +55,7 @@ Rails.application.routes.draw do
 
   get 'manifest', to: 'manifests#show', defaults: { format: 'json' }
   get 'intent', to: 'intents#show'
-  get 'custom.css', to: 'custom_css#show', as: :custom_css
+  get 'custom.css', to: 'custom_css#show'
   resources :custom_css, only: :show, path: :css
   get 'system.css', to: 'system_css#show', as: :system_css
   get 'user_custom.css', to: 'user_custom_css#show', as: :user_custom_css