diff --git a/examples/server.rs b/examples/server.rs
index 8fb9f0c..f4b9049 100644
--- a/examples/server.rs
+++ b/examples/server.rs
@@ -2,12 +2,13 @@ use async_std::net::{TcpListener, TcpStream};
 use async_std::prelude::*;
 use async_std::task;
 use http_types::{Response, StatusCode};
+use url::Url;
 
 #[async_std::main]
 async fn main() -> http_types::Result<()> {
     // Open up a TCP connection and create a URL.
     let listener = TcpListener::bind(("127.0.0.1", 8080)).await?;
-    let addr = format!("http://{}", listener.local_addr()?);
+    let addr = Url::parse(&format!("http://{}", listener.local_addr()?))?;
     println!("listening on {}", addr);
 
     // For each incoming TCP connection, spawn a task and call `accept`.
@@ -25,7 +26,7 @@ async fn main() -> http_types::Result<()> {
 }
 
 // Take a TCP stream, and convert it into sequential HTTP request / response pairs.
-async fn accept(addr: String, stream: TcpStream) -> http_types::Result<()> {
+async fn accept(addr: Url, stream: TcpStream) -> http_types::Result<()> {
     println!("starting new connection from {}", stream.peer_addr()?);
     async_h1::accept(&addr, stream.clone(), |_req| async move {
         let mut res = Response::new(StatusCode::Ok);
diff --git a/src/lib.rs b/src/lib.rs
index 5868726..adb5ce6 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -60,7 +60,7 @@
 //! async fn main() -> http_types::Result<()> {
 //!     // Open up a TCP connection and create a URL.
 //!     let listener = TcpListener::bind(("127.0.0.1", 8080)).await?;
-//!     let addr = format!("http://{}", listener.local_addr()?);
+//!     let addr: url::Url = format!("http://{}", listener.local_addr()?).parse()?;
 //!     println!("listening on {}", addr);
 //!
 //!     // For each incoming TCP connection, spawn a task and call `accept`.
@@ -68,8 +68,8 @@
 //!     while let Some(stream) = incoming.next().await {
 //!         let stream = stream?;
 //!         let addr = addr.clone();
-//!         task::spawn(async {
-//!             if let Err(err) = accept(addr, stream).await {
+//!         task::spawn(async move {
+//!             if let Err(err) = accept(&addr, stream).await {
 //!                 eprintln!("{}", err);
 //!             }
 //!         });
@@ -78,7 +78,7 @@
 //! }
 //!
 //! // Take a TCP stream, and convert it into sequential HTTP request / response pairs.
-//! async fn accept(addr: String, stream: TcpStream) -> http_types::Result<()> {
+//! async fn accept(addr: &url::Url, stream: TcpStream) -> http_types::Result<()> {
 //!     println!("starting new connection from {}", stream.peer_addr()?);
 //!     async_h1::accept(&addr, stream.clone(), |_req| async move {
 //!         let mut res = Response::new(StatusCode::Ok);
diff --git a/src/server/decode.rs b/src/server/decode.rs
index 3a1373c..499aca4 100644
--- a/src/server/decode.rs
+++ b/src/server/decode.rs
@@ -8,6 +8,7 @@ use async_std::prelude::*;
 use http_types::headers::{HeaderName, HeaderValue, CONTENT_LENGTH, TRANSFER_ENCODING};
 use http_types::{ensure, ensure_eq, format_err};
 use http_types::{Body, Method, Request};
+use url::Url;
 
 use crate::chunked::ChunkedDecoder;
 use crate::{MAX_HEADERS, MAX_HEAD_LENGTH};
@@ -18,7 +19,7 @@ const LF: u8 = b'\n';
 const HTTP_1_1_VERSION: u8 = 1;
 
 /// Decode an HTTP request on the server.
-pub(crate) async fn decode<R>(addr: &str, reader: R) -> http_types::Result<Option<Request>>
+pub(crate) async fn decode<R>(addr: &Url, reader: R) -> http_types::Result<Option<Request>>
 where
     R: Read + Unpin + Send + Sync + 'static,
 {
@@ -59,7 +60,7 @@ where
 
     let uri = httparse_req.path;
     let uri = uri.ok_or_else(|| format_err!("No uri found"))?;
-    let uri = url::Url::parse(&format!("{}{}", addr, uri))?;
+    let uri = addr.join(uri)?;
 
     let version = httparse_req.version;
     let version = version.ok_or_else(|| format_err!("No version found"))?;
diff --git a/src/server/mod.rs b/src/server/mod.rs
index 05fb675..19cbb2f 100644
--- a/src/server/mod.rs
+++ b/src/server/mod.rs
@@ -3,9 +3,9 @@
 use std::time::Duration;
 
 use async_std::future::{timeout, Future, TimeoutError};
-use async_std::io::{self};
-use async_std::io::{Read, Write};
+use async_std::io::{self, Read, Write};
 use http_types::{Request, Response};
+use url::Url;
 
 mod decode;
 mod encode;
@@ -31,7 +31,7 @@ impl Default for ServerOptions {
 /// Accept a new incoming HTTP/1.1 connection.
 ///
 /// Supports `KeepAlive` requests by default.
-pub async fn accept<RW, F, Fut>(addr: &str, io: RW, endpoint: F) -> http_types::Result<()>
+pub async fn accept<RW, F, Fut>(addr: &Url, io: RW, endpoint: F) -> http_types::Result<()>
 where
     RW: Read + Write + Clone + Send + Sync + Unpin + 'static,
     F: Fn(Request) -> Fut,
@@ -44,7 +44,7 @@ where
 ///
 /// Supports `KeepAlive` requests by default.
 pub async fn accept_with_opts<RW, F, Fut>(
-    addr: &str,
+    addr: &Url,
     mut io: RW,
     endpoint: F,
     opts: ServerOptions,
diff --git a/tests/server-chunked-encode-large.rs b/tests/server-chunked-encode-large.rs
index 9ca34c1..209f23e 100644
--- a/tests/server-chunked-encode-large.rs
+++ b/tests/server-chunked-encode-large.rs
@@ -145,12 +145,16 @@ const RESPONSE: &'static str = concat![
 #[async_std::test]
 async fn server_chunked_large() {
     let case = TestCase::new(REQUEST, "").await;
-    async_h1::accept("http://example.com", case.clone(), |_| async {
-        let mut res = Response::new(StatusCode::Ok);
-        let body = Cursor::new(TEXT.to_owned());
-        res.set_body(Body::from_reader(body, None));
-        Ok(res)
-    })
+    async_h1::accept(
+        &"http://example.com".parse().unwrap(),
+        case.clone(),
+        |_| async {
+            let mut res = Response::new(StatusCode::Ok);
+            let body = Cursor::new(TEXT.to_owned());
+            res.set_body(Body::from_reader(body, None));
+            Ok(res)
+        },
+    )
     .await
     .unwrap();
     case.assert_writer_with(RESPONSE, common::munge_date).await;
diff --git a/tests/server-chunked-encode-small.rs b/tests/server-chunked-encode-small.rs
index 91ebf41..a0d439c 100644
--- a/tests/server-chunked-encode-small.rs
+++ b/tests/server-chunked-encode-small.rs
@@ -41,12 +41,16 @@ const RESPONSE: &'static str = concat![
 #[async_std::test]
 async fn server_chunked_large() {
     let case = TestCase::new(REQUEST, "").await;
-    async_h1::accept("http://example.com", case.clone(), |_| async {
-        let mut res = Response::new(StatusCode::Ok);
-        let body = Cursor::new(TEXT.to_owned());
-        res.set_body(Body::from_reader(body, None));
-        Ok(res)
-    })
+    async_h1::accept(
+        &"http://example.com".parse().unwrap(),
+        case.clone(),
+        |_| async {
+            let mut res = Response::new(StatusCode::Ok);
+            let body = Cursor::new(TEXT.to_owned());
+            res.set_body(Body::from_reader(body, None));
+            Ok(res)
+        },
+    )
     .await
     .unwrap();
     case.assert_writer_with(RESPONSE, common::munge_date).await;
diff --git a/tests/server.rs b/tests/server.rs
index 6ac0c82..96bc737 100644
--- a/tests/server.rs
+++ b/tests/server.rs
@@ -12,9 +12,9 @@ async fn test_basic_request() {
         "fixtures/response-add-date.txt",
     )
     .await;
-    let addr = "http://example.com";
+    let addr = "http://example.com".parse().unwrap();
 
-    async_h1::accept(addr, case.clone(), |_req| async {
+    async_h1::accept(&addr, case.clone(), |_req| async {
         let mut res = Response::new(StatusCode::Ok);
         res.set_body("");
         Ok(res)
@@ -32,9 +32,9 @@ async fn test_chunked_basic() {
         "fixtures/response-chunked-basic.txt",
     )
     .await;
-    let addr = "http://example.com";
+    let addr = "http://example.com".parse().unwrap();
 
-    async_h1::accept(addr, case.clone(), |_req| async {
+    async_h1::accept(&addr, case.clone(), |_req| async {
         let mut res = Response::new(StatusCode::Ok);
         res.set_body(Body::from_reader(
             Cursor::new(b"Mozilla")
@@ -59,8 +59,8 @@ async fn test_chunked_echo() {
     )
     .await;
 
-    let addr = "http://example.com";
-    async_h1::accept(addr, case.clone(), |req| async {
+    let addr = "http://example.com".parse().unwrap();
+    async_h1::accept(&addr, case.clone(), |req| async {
         let ct = req.content_type();
         let body: Body = req.into();
 
@@ -86,9 +86,9 @@ async fn test_unexpected_eof() {
         "fixtures/response-unexpected-eof.txt",
     )
     .await;
-    let addr = "http://example.com";
+    let addr = "http://example.com".parse().unwrap();
 
-    async_h1::accept(addr, case.clone(), |req| async {
+    async_h1::accept(&addr, case.clone(), |req| async {
         let mut res = Response::new(StatusCode::Ok);
         let ct = req.content_type();
         let body: Body = req.into();
@@ -112,9 +112,9 @@ async fn test_invalid_trailer() {
         "fixtures/response-invalid-trailer.txt",
     )
     .await;
-    let addr = "http://example.com";
+    let addr = "http://example.com".parse().unwrap();
 
-    async_h1::accept(addr, case.clone(), |req| async {
+    async_h1::accept(&addr, case.clone(), |req| async {
         let mut res = Response::new(StatusCode::Ok);
         let ct = req.content_type();
         let body: Body = req.into();