diff --git a/config/cable.yml b/config/cable.yml
index 6a8c4c9..01a6d47 100644
--- a/config/cable.yml
+++ b/config/cable.yml
@@ -6,5 +6,5 @@ test:
 
 production:
   adapter: redis
-  url: ENV['REDIS_URL']
+  url: <%= ENV['REDIS_URL'] %>
   channel_prefix: polyglot_production