diff --git a/server.go b/server.go
index a2cc5a6..46f1164 100644
--- a/server.go
+++ b/server.go
@@ -24,8 +24,9 @@ type server struct {
 
 func NewServer(o *Options) Server {
 	s := &server{
-		_option:  o.Validate(),
-		_clients: make(map[string]clients.Client, 100),
+		_option:   o.Validate(),
+		_handlers: make(map[string]*clients.Options, 1),
+		_clients:  make(map[string]clients.Client, 100),
 	}
 
 	s._upgrader = &websocket.Upgrader{