diff --git a/tty.go b/tty.go
index c8af5dea..77dc79fc 100644
--- a/tty.go
+++ b/tty.go
@@ -14,6 +14,7 @@ import (
 	"net"
 	"os"
 	"os/exec"
+	"runtime"
 )
 
 // randomPort returns a random port number that is not in use.
@@ -36,6 +37,10 @@ func buildTtyCmd(port int, shell Shell) *exec.Cmd {
 		"--writable",
 	}
 
+	if runtime.GOOS == "windows" {
+		args = append(args, "-w", ".")
+	}
+
 	args = append(args, shell.Command...)
 
 	cmd := exec.Command("ttyd", args...)