diff --git a/box.go b/box.go
index 2d2ca02..d99df0d 100644
--- a/box.go
+++ b/box.go
@@ -56,7 +56,7 @@ func (backend *Backend) NewBox() tomo.Box {
 }
 
 func (this *box) Box () tomo.Box {
-	return this
+	return this.outer
 }
 
 func (this *box) Window () tomo.Window {