diff --git a/lib/assets/javascripts/channel.js.coffee b/lib/assets/javascripts/channel.js.coffee
index a324a62a1b..2f07affb19 100644
--- a/lib/assets/javascripts/channel.js.coffee
+++ b/lib/assets/javascripts/channel.js.coffee
@@ -1,6 +1,6 @@
 class @Cable.Channel
   constructor: (params = {}) ->
-    @channelName ?= @underscore @constructor.name
+    @channelName ?= "#{@underscore(@constructor.name)}_channel"
 
     params['channel'] = @channelName
     @channelIdentifier = JSON.stringify params