diff --git a/game/builtin/examples/game/game/server.go b/game/builtin/examples/game/game/server.go
index c3828ac..41243ba 100644
--- a/game/builtin/examples/game/game/server.go
+++ b/game/builtin/examples/game/game/server.go
@@ -1,6 +1,7 @@
 package game
 
 import (
+	"minotaur/game"
 	"minotaur/server"
 	"minotaur/utils/sole"
 )
@@ -26,7 +27,7 @@ func onConnectionReceivePacket(srv *server.Server, conn *server.Conn, packet []b
 	}
 }
 
-func onConnectionClosed(player *Player) {
+func onConnectionClosed(world game.World[int64, *Player], player *Player) {
 	Game.Leave(player.GetID())
 	player.Close()
 }
diff --git a/game/builtin/examples/chat/client/main.go b/game/builtin/examples/simple_chat/client/client.go
similarity index 100%
rename from game/builtin/examples/chat/client/main.go
rename to game/builtin/examples/simple_chat/client/client.go
diff --git a/game/builtin/examples/chat/main.go b/game/builtin/examples/simple_chat/server/server.go
similarity index 100%
rename from game/builtin/examples/chat/main.go
rename to game/builtin/examples/simple_chat/server/server.go