diff --git a/app/helpers/application_helper.rb b/app/helpers/application_helper.rb
index b9017beb2..b08e32a7f 100644
--- a/app/helpers/application_helper.rb
+++ b/app/helpers/application_helper.rb
@@ -62,7 +62,7 @@ module ApplicationHelper
   end
 
   def self.asset_data_base64(path)
-    asset = Rails.application.assets.find_asset(path)
+    asset = Rails.application.assets_manifest.find(path).first
     throw "Could not find asset '#{path}'" if asset.nil?
     base64 = Base64.encode64(asset.to_s).gsub(/\s+/, "")
     "data:#{asset.content_type};base64,#{Rack::Utils.escape(base64)}"