diff --git a/src/net/dial.go b/src/net/dial.go
index 85ec557575..35c2761d29 100644
--- a/src/net/dial.go
+++ b/src/net/dial.go
@@ -11,12 +11,45 @@ import (
 	"time"
 )
 
-// defaultTCPKeepAlive is a default constant value for TCPKeepAlive times
-// See golang.org/issue/31510
 const (
+	// defaultTCPKeepAlive is a default constant value for TCPKeepAlive times
+	// See go.dev/issue/31510
 	defaultTCPKeepAlive = 15 * time.Second
+
+	// For the moment, MultiPath TCP is not used by default
+	// See go.dev/issue/56539
+	defaultMPTCPEnabled = false
 )
 
+// mptcpStatus is a tristate for Multipath TCP, see go.dev/issue/56539
+type mptcpStatus uint8
+
+const (
+	// The value 0 is the system default, linked to defaultMPTCPEnabled
+	mptcpUseDefault mptcpStatus = iota
+	mptcpEnabled
+	mptcpDisabled
+)
+
+func (m *mptcpStatus) get() bool {
+	switch *m {
+	case mptcpEnabled:
+		return true
+	case mptcpDisabled:
+		return false
+	}
+
+	return defaultMPTCPEnabled
+}
+
+func (m *mptcpStatus) set(use bool) {
+	if use {
+		*m = mptcpEnabled
+	} else {
+		*m = mptcpDisabled
+	}
+}
+
 // A Dialer contains options for connecting to an address.
 //
 // The zero value for each field is equivalent to dialing