diff --git a/object.go b/object.go
index f954cf5..ad37fd8 100644
--- a/object.go
+++ b/object.go
@@ -159,6 +159,8 @@ type ContentBox interface {
 // TextBox is a box that contains text content.
 type TextBox interface {
 	ContentBox
+
+	SetText      (string)
 	SetTextColor (color.Color)
 	SetFace      (font.Face)
 	SetHAlign    (Align)