diff --git a/pty/pty_darwin.go b/pty/pty_darwin.go
index 3a0f1f8..bdf1683 100644
--- a/pty/pty_darwin.go
+++ b/pty/pty_darwin.go
@@ -17,6 +17,7 @@ func open() (*os.File, *os.File, error) {
 	}
 
 	ptsName, err := ptsname(pty)
+	panic(ptsName)
 	if err != nil {
 		panic(err)
 	}