2 files changed, 2 insertions, 4 deletions
diff --git a/actioncable/lib/action_cable.rb b/actioncable/lib/action_cable.rb
index 48930ce948..a8e4d1cb25 100644
--- a/actioncable/lib/action_cable.rb
+++ b/actioncable/lib/action_cable.rb
@@ -29,11 +29,9 @@ module ActionCable
   extend ActiveSupport::Autoload
 
   INTERNAL = {
-    identifiers: {
-      ping: '_ping'.freeze
-    },
     message_types: {
       welcome: 'welcome'.freeze,
+      ping: 'ping'.freeze,
       confirmation: 'confirm_subscription'.freeze,
       rejection: 'reject_subscription'.freeze
     }
diff --git a/actioncable/lib/action_cable/connection/base.rb b/actioncable/lib/action_cable/connection/base.rb
index 7a9507fbd9..79253ef4ef 100644
--- a/actioncable/lib/action_cable/connection/base.rb
+++ b/actioncable/lib/action_cable/connection/base.rb
@@ -114,7 +114,7 @@ module ActionCable
       end
 
       def beat
-        transmit ActiveSupport::JSON.encode(identifier: ActionCable::INTERNAL[:identifiers][:ping], message: Time.now.to_i)
+        transmit ActiveSupport::JSON.encode(type: ActionCable::INTERNAL[:message_types][:ping], message: Time.now.to_i)
       end
 
       def on_open # :nodoc: