diff --git a/app/controllers/metacodes_controller.rb b/app/controllers/metacodes_controller.rb
index b0978812..7a14f2a8 100644
--- a/app/controllers/metacodes_controller.rb
+++ b/app/controllers/metacodes_controller.rb
@@ -7,7 +7,7 @@ class MetacodesController < ApplicationController
   def index
     @metacodes = Metacode.order("name").all
     @metacodes.map do |metacode|
-      metacode.icon = asset_path(metacode.icon)
+      metacode.icon = ActionController::Base.helpers.asset_path(metacode.icon)
     end
 
     respond_to do |format|