diff --git a/lib/hotwire/spark/action_cable/server.rb b/lib/hotwire/spark/action_cable/server.rb
index 8910906..20058d5 100644
--- a/lib/hotwire/spark/action_cable/server.rb
+++ b/lib/hotwire/spark/action_cable/server.rb
@@ -1,5 +1,5 @@
 class Hotwire::Spark::ActionCable::Server < ActionCable::Server::Base
-  def initialize(config: nil)
+  def initialize
     config = ::ActionCable::Server::Base.config.dup
     config.connection_class = -> { ::ActionCable::Connection::Base }
     super(config: config)