diff --git a/internal/system/box.go b/internal/system/box.go
index e419246..5b03d28 100644
--- a/internal/system/box.go
+++ b/internal/system/box.go
@@ -191,7 +191,7 @@ func (this *box) SetDNDAccept (types ...data.Mime) {
 }
 
 func (this *box) SetFocused (focused bool) {
-	hierarchy := this.parent.getHierarchy()
+	hierarchy := this.getHierarchy()
 	if hierarchy == nil {
 		focusedCopy := focused
 		this.focusQueued = &focusedCopy