diff --git a/key.go b/key.go
index 25310a5..979be82 100644
--- a/key.go
+++ b/key.go
@@ -80,6 +80,7 @@ const (
 	KeyBreak     = keyETX
 	KeyEnter     = keyCR
 	KeyBackspace = keyBS
+	KeyTab       = keyHT
 	KeySpace     = keySP
 	KeyEsc       = keyESC
 	KeyEscape    = keyESC