diff --git a/rest/server.go b/rest/server.go
index bc8ea13..f4c11d6 100644
--- a/rest/server.go
+++ b/rest/server.go
@@ -31,7 +31,7 @@ type (
 // WithMiddleware with sys client
 func WithMiddleware(m ...middleware.Middleware) Option {
 	return func(o *options) {
-		o.middlewareChain = append(o.middlewareChain, m...)
+		o.middlewareChain = m
 	}
 }