diff --git a/actix-server/src/builder.rs b/actix-server/src/builder.rs
index 9869fe52..e1d3a2d3 100644
--- a/actix-server/src/builder.rs
+++ b/actix-server/src/builder.rs
@@ -127,7 +127,7 @@ impl ServerBuilder {
     ///
     /// [mptcp.dev]: https://www.mptcp.dev
     #[cfg(target_os = "linux")]
-    pub fn mptcp(mut self, mptcp_enabled: Mptcp) -> Self {
+    pub fn mptcp(mut self, mptcp_enabled: MpTcp) -> Self {
         self.mptcp = mptcp_enabled;
         self
     }
diff --git a/actix-server/src/socket.rs b/actix-server/src/socket.rs
index 63fbd525..486c0d46 100644
--- a/actix-server/src/socket.rs
+++ b/actix-server/src/socket.rs
@@ -232,7 +232,7 @@ pub(crate) fn create_mio_tcp_listener(
     #[cfg(not(target_os = "linux"))]
     let protocol = Protocol::TCP;
     #[cfg(target_os = "linux")]
-    let protocol = if matches!(mptcp, Mptcp::Disabled) {
+    let protocol = if matches!(mptcp, MpTcp::Disabled) {
         Protocol::TCP
     } else {
         Protocol::MPTCP