diff --git a/server.go b/server.go
index 1e059ae..50a9d3e 100644
--- a/server.go
+++ b/server.go
@@ -89,7 +89,7 @@ type server[RQB RequestBuilder] struct {
 	serve  [numServeStages][]ServeFunc[RQB]
 }
 
-func NewServer[RQB RequestBuilder](serve ServeFunc[RQB]) (srv *server[RQB]) {
+func NewServer[RQB RequestBuilder](serve func(req *Request[RQB]) (res *Response, err Error)) (srv *server[RQB]) {
 	srv = &server[RQB]{
 		serve: [numServeStages][]ServeFunc[RQB]{},
 	}