diff --git a/src/application.rs b/src/application.rs
index 925dbb01..04c15052 100644
--- a/src/application.rs
+++ b/src/application.rs
@@ -37,12 +37,11 @@ impl<S: 'static> PipelineHandler<S> for Inner<S> {
     }
 }
 
+#[cfg(test)]
 impl<S: 'static> HttpApplication<S> {
-    #[cfg(test)]
     pub(crate) fn run(&mut self, req: HttpRequest<S>) -> Reply {
         self.inner.borrow_mut().handle(req)
     }
-    #[cfg(test)]
     pub(crate) fn prepare_request(&self, req: HttpRequest) -> HttpRequest<S> {
         req.with_state(Rc::clone(&self.state), self.router.clone())
     }
@@ -60,15 +59,12 @@ impl<S: 'static> HttpHandler for HttpApplication<S> {
             Err(req)
         }
     }
-
-    fn server_settings(&mut self, settings: ServerSettings) {
-        self.router.set_server_settings(settings);
-    }
 }
 
 struct ApplicationParts<S> {
     state: S,
     prefix: String,
+    settings: ServerSettings,
     default: Resource<S>,
     resources: HashMap<Pattern, Option<Resource<S>>>,
     external: HashMap<String, Pattern>,
@@ -89,6 +85,7 @@ impl Application<()> {
             parts: Some(ApplicationParts {
                 state: (),
                 prefix: "/".to_owned(),
+                settings: ServerSettings::default(),
                 default: Resource::default_not_found(),
                 resources: HashMap::new(),
                 external: HashMap::new(),
@@ -116,6 +113,7 @@ impl<S> Application<S> where S: 'static {
             parts: Some(ApplicationParts {
                 state: state,
                 prefix: "/".to_owned(),
+                settings: ServerSettings::default(),
                 default: Resource::default_not_found(),
                 resources: HashMap::new(),
                 external: HashMap::new(),
@@ -279,7 +277,7 @@ impl<S> Application<S> where S: 'static {
             resources.insert(pattern, None);
         }
 
-        let (router, resources) = Router::new(prefix, resources);
+        let (router, resources) = Router::new(prefix, parts.settings, resources);
 
         let inner = Rc::new(RefCell::new(
             Inner {
@@ -301,7 +299,11 @@ impl<S> Application<S> where S: 'static {
 impl<S: 'static> IntoHttpHandler for Application<S> {
     type Handler = HttpApplication<S>;
 
-    fn into_handler(mut self) -> HttpApplication<S> {
+    fn into_handler(mut self, settings: ServerSettings) -> HttpApplication<S> {
+        {
+            let parts = self.parts.as_mut().expect("Use after finish");
+            parts.settings = settings;
+        }
         self.finish()
     }
 }
@@ -309,7 +311,11 @@ impl<S: 'static> IntoHttpHandler for Application<S> {
 impl<'a, S: 'static> IntoHttpHandler for &'a mut Application<S> {
     type Handler = HttpApplication<S>;
 
-    fn into_handler(self) -> HttpApplication<S> {
+    fn into_handler(self, settings: ServerSettings) -> HttpApplication<S> {
+        {
+            let parts = self.parts.as_mut().expect("Use after finish");
+            parts.settings = settings;
+        }
         self.finish()
     }
 }
diff --git a/src/channel.rs b/src/channel.rs
index 01c18a52..37bbe771 100644
--- a/src/channel.rs
+++ b/src/channel.rs
@@ -19,9 +19,6 @@ pub trait HttpHandler: 'static {
 
     /// Handle request
     fn handle(&mut self, req: HttpRequest) -> Result<Box<HttpHandlerTask>, HttpRequest>;
-
-    /// Set server settings
-    fn server_settings(&mut self, settings: ServerSettings) {}
 }
 
 pub trait HttpHandlerTask {
@@ -39,13 +36,13 @@ pub trait IntoHttpHandler {
     type Handler: HttpHandler;
 
     /// Convert into `HttpHandler` object.
-    fn into_handler(self) -> Self::Handler;
+    fn into_handler(self, settings: ServerSettings) -> Self::Handler;
 }
 
 impl<T: HttpHandler> IntoHttpHandler for T {
     type Handler = T;
 
-    fn into_handler(self) -> Self::Handler {
+    fn into_handler(self, _: ServerSettings) -> Self::Handler {
         self
     }
 }
diff --git a/src/router.rs b/src/router.rs
index e5fc091f..2300dce5 100644
--- a/src/router.rs
+++ b/src/router.rs
@@ -24,8 +24,9 @@ struct Inner {
 
 impl Router {
     /// Create new router
-    pub fn new<S>(prefix: &str, map: HashMap<Pattern, Option<Resource<S>>>)
-                  -> (Router, Vec<Resource<S>>)
+    pub fn new<S>(prefix: &str,
+                  settings: ServerSettings,
+                  map: HashMap<Pattern, Option<Resource<S>>>) -> (Router, Vec<Resource<S>>)
     {
         let prefix = prefix.trim().trim_right_matches('/').to_owned();
         let mut named = HashMap::new();
@@ -51,14 +52,7 @@ impl Router {
                    regset: RegexSet::new(&paths).unwrap(),
                    named: named,
                    patterns: patterns,
-                   srv: ServerSettings::default() })), resources)
-    }
-
-    #[allow(mutable_transmutes)]
-    pub(crate) fn set_server_settings(&mut self, settings: ServerSettings) {
-        let inner: &Inner = self.0.as_ref();
-        let inner: &mut Inner = unsafe{mem::transmute(inner)};
-        inner.srv = settings;
+                   srv: settings })), resources)
     }
 
     /// Router prefix
diff --git a/src/server.rs b/src/server.rs
index b5c2e818..7394585a 100644
--- a/src/server.rs
+++ b/src/server.rs
@@ -268,11 +268,9 @@ impl<T, A, H, U, V> HttpServer<T, A, H, U>
             let ka = self.keep_alive;
             let factory = Arc::clone(&self.factory);
             let addr = Arbiter::start(move |ctx: &mut Context<_>| {
-                let mut apps: Vec<_> = (*factory)()
-                    .into_iter().map(|h| h.into_handler()).collect();
-                for app in &mut apps {
-                    app.server_settings(s.clone());
-                }
+                let apps: Vec<_> = (*factory)()
+                    .into_iter()
+                    .map(|h| h.into_handler(s.clone())).collect();
                 ctx.add_stream(rx);
                 Worker::new(apps, h, ka)
             });
@@ -482,10 +480,9 @@ impl<T, A, H, U, V> HttpServer<T, A, H, U>
         // set server settings
         let addr: net::SocketAddr = "127.0.0.1:8080".parse().unwrap();
         let settings = ServerSettings::new(Some(addr), &self.host, secure);
-        let mut apps: Vec<_> = (*self.factory)().into_iter().map(|h| h.into_handler()).collect();
-        for app in &mut apps {
-            app.server_settings(settings.clone());
-        }
+        let apps: Vec<_> = (*self.factory)()
+            .into_iter()
+            .map(|h| h.into_handler(settings.clone())).collect();
         self.h = Some(Rc::new(WorkerSettings::new(apps, self.keep_alive)));
 
         // start server
diff --git a/src/test.rs b/src/test.rs
index 11c03f35..88c2044f 100644
--- a/src/test.rs
+++ b/src/test.rs
@@ -16,7 +16,7 @@ use tokio_core::reactor::Core;
 use net2::TcpBuilder;
 
 use error::Error;
-use server::HttpServer;
+use server::{HttpServer, ServerSettings};
 use handler::{Handler, Responder, ReplyItem};
 use channel::{HttpHandler, IntoHttpHandler};
 use middleware::Middleware;
@@ -199,8 +199,8 @@ impl<S: 'static> TestApp<S> {
 impl<S: 'static> IntoHttpHandler for TestApp<S> {
     type Handler = HttpApplication<S>;
 
-    fn into_handler(self) -> HttpApplication<S> {
-        self.app.unwrap().finish()
+    fn into_handler(mut self, settings: ServerSettings) -> HttpApplication<S> {
+        self.app.take().unwrap().into_handler(settings)
     }
 }
 
@@ -347,7 +347,7 @@ impl<S> TestRequest<S> {
         let req = HttpRequest::new(method, uri, version, headers, payload);
         req.as_mut().cookies = cookies;
         req.as_mut().params = params;
-        let (router, _) = Router::new::<S>("/", HashMap::new());
+        let (router, _) = Router::new::<S>("/", ServerSettings::default(), HashMap::new());
         req.with_state(Rc::new(state), router)
     }