diff --git a/internal/system/event.go b/internal/system/event.go
index 476e6da..91509e9 100644
--- a/internal/system/event.go
+++ b/internal/system/event.go
@@ -36,7 +36,7 @@ func (this *Hierarchy) HandleKeyDown (key input.Key, numberPad bool) {
 // be called *before* HandleKeyUp.
 func (this *Hierarchy) HandleKeyUp (key input.Key, numberPad bool) {
 	if target := this.keyboardTarget(); target != nil {
-		target.handleKeyDown(key, numberPad)
+		target.handleKeyUp(key, numberPad)
 	}
 }