diff --git a/libs/tls/src/cmd.rs b/libs/tls/src/cmd.rs
index ebc533cbe..9df851149 100644
--- a/libs/tls/src/cmd.rs
+++ b/libs/tls/src/cmd.rs
@@ -111,8 +111,7 @@ pub fn shellchat<'a>(
                     .unwrap();
 
             log::info!("connect TCPstream to {}", target);
-            let url = format!("{}:443", target);
-            match TcpStream::connect(url) {
+            match TcpStream::connect((target, 443)) {
                 Ok(mut sock) => {
                     log::info!("tcp connected");
                     write!(ret, "{}", t!("tls.test_success_tcp", locales::LANG)).ok();
diff --git a/libs/tls/src/lib.rs b/libs/tls/src/lib.rs
index 6fd678673..ea6b549ca 100644
--- a/libs/tls/src/lib.rs
+++ b/libs/tls/src/lib.rs
@@ -311,8 +311,7 @@ impl Tls {
                 let mut conn =
                     rustls::ClientConnection::new(Arc::new(config), server_name).unwrap();
                 log::info!("connect TCPstream to {}", target);
-                let url = format!("{}:443", target);
-                match TcpStream::connect(url) {
+                match TcpStream::connect((target, 443)) {
                     Ok(mut sock) => {
                         match conn.complete_io(&mut sock) {
                             Ok(_) => log::info!("handshake complete"),
diff --git a/services/net/src/tests.rs b/services/net/src/tests.rs
index 743ce0157..c1bd41492 100644
--- a/services/net/src/tests.rs
+++ b/services/net/src/tests.rs
@@ -47,7 +47,7 @@ fn bind_error() {
 
 #[test]
 fn connect_error() {
-    match TcpStream::connect("0.0.0.0:1") {
+    match TcpStream::connect(("0.0.0.0",1)) {
         Ok(..) => panic!(),
         Err(e) => assert!(
             e.kind() == ErrorKind::ConnectionRefused
diff --git a/services/shellchat/src/nettests.rs b/services/shellchat/src/nettests.rs
index d634080c0..fccfd4a78 100644
--- a/services/shellchat/src/nettests.rs
+++ b/services/shellchat/src/nettests.rs
@@ -180,7 +180,7 @@ fn bind_error() {
 }
 
 fn connect_error() {
-    match TcpStream::connect("0.0.0.0:1") {
+    match TcpStream::connect(("0.0.0.0",1)) {
         Ok(..) => panic!(),
         Err(e) => {
             log::info!("connect_error is {:?}", e);