diff --git a/config/cable.yml b/config/cable.yml
index b5413e7b..5488bf47 100644
--- a/config/cable.yml
+++ b/config/cable.yml
@@ -6,6 +6,4 @@ test:
 
 production:
   adapter: <%= ENV['CABLE_ADAPTER'] || 'async' %>
-  # adapter: redis
-  # url: <%= ENV.fetch("REDIS_URL") { "redis://localhost:6379/1" } %>
-  # channel_prefix: bbb-app-rooms_production
+  channel_prefix: <%= ENV.fetch("REDIS_PREFIX") { "bbb-app-rooms" } %>
diff --git a/dotenv b/dotenv
index 3cb48c51..763f7c5b 100644
--- a/dotenv
+++ b/dotenv
@@ -35,6 +35,7 @@ URL_HOST=lti.jesus.blindside-dev.com
 
 ## Enable redis for actioncable (Optional)
 # REDIS_URL=redis://myuser:mypass@localhost
+# REDIS_PREFIX=bbb-app-rooms
 
 ## Use to send logs to external repository (Optional)
 # RAILS_LOG_REMOTE_NAME=xxx.papertrailapp.com