diff --git a/termios/pty_test.go b/termios/pty_test.go
index 04e43ef..3789c15 100644
--- a/termios/pty_test.go
+++ b/termios/pty_test.go
@@ -1,3 +1,5 @@
+// +build !windows
+
 package termios
 
 import (