diff --git a/CHANGES.md b/CHANGES.md
index 0d40cf31..3cc6e5ef 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -7,6 +7,10 @@
 * Added helper functions for reading test response body,
  `test::read_response()` and test::read_response_json()`
 
+### Changed
+
+* Rename `RouterConfig` to `ServiceConfig`
+
 ### Fixed
 
 * Fixed `TestRequest::app_data()`
diff --git a/actix-files/src/lib.rs b/actix-files/src/lib.rs
index 89eead56..4923536f 100644
--- a/actix-files/src/lib.rs
+++ b/actix-files/src/lib.rs
@@ -10,7 +10,7 @@ use std::{cmp, io};
 use actix_service::boxed::{self, BoxedNewService, BoxedService};
 use actix_service::{IntoNewService, NewService, Service};
 use actix_web::dev::{
-    HttpServiceFactory, Payload, ResourceDef, ServiceConfig, ServiceRequest,
+    AppService, HttpServiceFactory, Payload, ResourceDef, ServiceRequest,
     ServiceResponse,
 };
 use actix_web::error::{BlockingError, Error, ErrorInternalServerError};
@@ -349,7 +349,7 @@ impl Files {
 }
 
 impl HttpServiceFactory for Files {
-    fn register(self, config: &mut ServiceConfig) {
+    fn register(self, config: &mut AppService) {
         if self.default.borrow().is_none() {
             *self.default.borrow_mut() = Some(config.default_service());
         }
diff --git a/actix-web-codegen/src/route.rs b/actix-web-codegen/src/route.rs
index 348ce86a..1a5f7929 100644
--- a/actix-web-codegen/src/route.rs
+++ b/actix-web-codegen/src/route.rs
@@ -62,7 +62,7 @@ impl fmt::Display for Args {
 pub struct {name};
 
 impl actix_web::dev::HttpServiceFactory for {name} {{
-    fn register(self, config: &mut actix_web::dev::ServiceConfig) {{
+    fn register(self, config: &mut actix_web::dev::AppService) {{
         {ast}
 
         let resource = actix_web::Resource::new(\"{path}\"){guards}.{to}({name});
diff --git a/src/app.rs b/src/app.rs
index 6c34123d..bf6f2580 100644
--- a/src/app.rs
+++ b/src/app.rs
@@ -12,7 +12,7 @@ use actix_service::{
 use futures::IntoFuture;
 
 use crate::app_service::{AppEntry, AppInit, AppRoutingFactory};
-use crate::config::{AppConfig, AppConfigInner, RouterConfig};
+use crate::config::{AppConfig, AppConfigInner, ServiceConfig};
 use crate::data::{Data, DataFactory};
 use crate::dev::ResourceDef;
 use crate::error::Error;
@@ -125,7 +125,7 @@ where
     /// use actix_web::{web, middleware, App, HttpResponse};
     ///
     /// // this function could be located in different module
-    /// fn config(cfg: &mut web::RouterConfig) {
+    /// fn config(cfg: &mut web::ServiceConfig) {
     ///     cfg.service(web::resource("/test")
     ///         .route(web::get().to(|| HttpResponse::Ok()))
     ///         .route(web::head().to(|| HttpResponse::MethodNotAllowed()))
@@ -141,9 +141,9 @@ where
     /// ```
     pub fn configure<F>(mut self, f: F) -> Self
     where
-        F: Fn(&mut RouterConfig),
+        F: Fn(&mut ServiceConfig),
     {
-        let mut cfg = RouterConfig::new();
+        let mut cfg = ServiceConfig::new();
         f(&mut cfg);
         self.data.extend(cfg.data);
         self.services.extend(cfg.services);
diff --git a/src/app_service.rs b/src/app_service.rs
index a5d90636..63bf84e7 100644
--- a/src/app_service.rs
+++ b/src/app_service.rs
@@ -10,7 +10,7 @@ use actix_service::{fn_service, NewService, Service};
 use futures::future::{ok, Either, FutureResult};
 use futures::{Async, Future, Poll};
 
-use crate::config::{AppConfig, ServiceConfig};
+use crate::config::{AppConfig, AppService};
 use crate::data::{DataFactory, DataFactoryResult};
 use crate::error::Error;
 use crate::guard::Guard;
@@ -77,8 +77,7 @@ where
             loc_cfg.addr = cfg.local_addr();
         }
 
-        let mut config =
-            ServiceConfig::new(self.config.borrow().clone(), default.clone());
+        let mut config = AppService::new(self.config.borrow().clone(), default.clone());
 
         // register services
         std::mem::replace(&mut *self.services.borrow_mut(), Vec::new())
diff --git a/src/config.rs b/src/config.rs
index c28b6678..07bfebcf 100644
--- a/src/config.rs
+++ b/src/config.rs
@@ -23,7 +23,7 @@ type HttpNewService =
     boxed::BoxedNewService<(), ServiceRequest, ServiceResponse, Error, ()>;
 
 /// Application configuration
-pub struct ServiceConfig {
+pub struct AppService {
     config: AppConfig,
     root: bool,
     default: Rc<HttpNewService>,
@@ -35,10 +35,10 @@ pub struct ServiceConfig {
     )>,
 }
 
-impl ServiceConfig {
+impl AppService {
     /// Crate server settings instance
     pub(crate) fn new(config: AppConfig, default: Rc<HttpNewService>) -> Self {
-        ServiceConfig {
+        AppService {
             config,
             default,
             root: true,
@@ -63,7 +63,7 @@ impl ServiceConfig {
     }
 
     pub(crate) fn clone_config(&self) -> Self {
-        ServiceConfig {
+        AppService {
             config: self.config.clone(),
             default: self.default.clone(),
             services: Vec::new(),
@@ -165,17 +165,17 @@ impl Default for AppConfigInner {
     }
 }
 
-/// Router config. It is used for external configuration.
+/// Service config is used for external configuration.
 /// Part of application configuration could be offloaded
 /// to set of external methods. This could help with
 /// modularization of big application configuration.
-pub struct RouterConfig {
+pub struct ServiceConfig {
     pub(crate) services: Vec<Box<ServiceFactory>>,
     pub(crate) data: Vec<Box<DataFactory>>,
     pub(crate) external: Vec<ResourceDef>,
 }
 
-impl RouterConfig {
+impl ServiceConfig {
     pub(crate) fn new() -> Self {
         Self {
             services: Vec::new(),
@@ -261,7 +261,7 @@ mod tests {
 
     #[test]
     fn test_data() {
-        let cfg = |cfg: &mut RouterConfig| {
+        let cfg = |cfg: &mut ServiceConfig| {
             cfg.data(10usize);
         };
 
@@ -276,7 +276,7 @@ mod tests {
 
     #[test]
     fn test_data_factory() {
-        let cfg = |cfg: &mut RouterConfig| {
+        let cfg = |cfg: &mut ServiceConfig| {
             cfg.data_factory(|| Ok::<_, ()>(10usize));
         };
 
@@ -288,7 +288,7 @@ mod tests {
         let resp = block_on(srv.call(req)).unwrap();
         assert_eq!(resp.status(), StatusCode::OK);
 
-        let cfg2 = |cfg: &mut RouterConfig| {
+        let cfg2 = |cfg: &mut ServiceConfig| {
             cfg.data_factory(|| Ok::<_, ()>(10u32));
         };
         let mut srv = init_service(
diff --git a/src/lib.rs b/src/lib.rs
index 6636d96d..6abf37c1 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -133,7 +133,7 @@ pub mod dev {
     //! use actix_web::dev::*;
     //! ```
 
-    pub use crate::config::{AppConfig, ServiceConfig};
+    pub use crate::config::{AppConfig, AppService};
     pub use crate::info::ConnectionInfo;
     pub use crate::rmap::ResourceMap;
     pub use crate::service::{HttpServiceFactory, ServiceRequest, ServiceResponse};
diff --git a/src/resource.rs b/src/resource.rs
index a8268302..15abcada 100644
--- a/src/resource.rs
+++ b/src/resource.rs
@@ -10,7 +10,7 @@ use actix_service::{
 use futures::future::{ok, Either, FutureResult};
 use futures::{Async, Future, IntoFuture, Poll};
 
-use crate::dev::{insert_slash, HttpServiceFactory, ResourceDef, ServiceConfig};
+use crate::dev::{insert_slash, AppService, HttpServiceFactory, ResourceDef};
 use crate::extract::FromRequest;
 use crate::guard::Guard;
 use crate::handler::{AsyncFactory, Factory};
@@ -347,7 +347,7 @@ where
             InitError = (),
         > + 'static,
 {
-    fn register(mut self, config: &mut ServiceConfig) {
+    fn register(mut self, config: &mut AppService) {
         let guards = if self.guards.is_empty() {
             None
         } else {
diff --git a/src/scope.rs b/src/scope.rs
index 5678158e..0ac73a2e 100644
--- a/src/scope.rs
+++ b/src/scope.rs
@@ -11,7 +11,7 @@ use actix_service::{
 use futures::future::{ok, Either, Future, FutureResult};
 use futures::{Async, IntoFuture, Poll};
 
-use crate::dev::{HttpServiceFactory, ServiceConfig};
+use crate::dev::{AppService, HttpServiceFactory};
 use crate::error::Error;
 use crate::guard::Guard;
 use crate::resource::Resource;
@@ -303,7 +303,7 @@ where
             InitError = (),
         > + 'static,
 {
-    fn register(self, config: &mut ServiceConfig) {
+    fn register(self, config: &mut AppService) {
         // update default resource if needed
         if self.default.borrow().is_none() {
             *self.default.borrow_mut() = Some(config.default_service());
diff --git a/src/service.rs b/src/service.rs
index e5b0896e..8bc2ff9a 100644
--- a/src/service.rs
+++ b/src/service.rs
@@ -10,16 +10,16 @@ use actix_http::{
 use actix_router::{Path, Resource, Url};
 use futures::future::{ok, FutureResult, IntoFuture};
 
-use crate::config::{AppConfig, ServiceConfig};
+use crate::config::{AppConfig, AppService};
 use crate::data::Data;
 use crate::request::HttpRequest;
 
 pub trait HttpServiceFactory {
-    fn register(self, config: &mut ServiceConfig);
+    fn register(self, config: &mut AppService);
 }
 
 pub(crate) trait ServiceFactory {
-    fn register(&mut self, config: &mut ServiceConfig);
+    fn register(&mut self, config: &mut AppService);
 }
 
 pub(crate) struct ServiceFactoryWrapper<T> {
@@ -38,7 +38,7 @@ impl<T> ServiceFactory for ServiceFactoryWrapper<T>
 where
     T: HttpServiceFactory,
 {
-    fn register(&mut self, config: &mut ServiceConfig) {
+    fn register(&mut self, config: &mut AppService) {
         if let Some(item) = self.factory.take() {
             item.register(config)
         }
diff --git a/src/web.rs b/src/web.rs
index ece869b2..079dec51 100644
--- a/src/web.rs
+++ b/src/web.rs
@@ -13,7 +13,7 @@ use crate::responder::Responder;
 use crate::route::Route;
 use crate::scope::Scope;
 
-pub use crate::config::RouterConfig;
+pub use crate::config::ServiceConfig;
 pub use crate::data::{Data, RouteData};
 pub use crate::request::HttpRequest;
 pub use crate::types::*;