diff --git a/lib/kamerling/server.rb b/lib/kamerling/server.rb
index <HASH>..<HASH> 100644
--- a/lib/kamerling/server.rb
+++ b/lib/kamerling/server.rb
@@ -36,10 +36,16 @@ module Kamerling class Server < GServer
     true
   end
 
+  def disconnecting *_
+  end
+
   def starting
     logger.info "TCP start #{tcp_addr.host}:#{tcp_addr.port}"
   end
 
+  def stopping
+  end
+
   def serve io
     addr  = Addr[*io.remote_address.ip_unpack, :TCP]
     input = io.read
add Server#disconnecting and #stopping stubs