diff --git a/src/App.vue b/src/App.vue
index ff637ca..6961341 100644
--- a/src/App.vue
+++ b/src/App.vue
@@ -40,7 +40,7 @@ watch(
 
 // #209: Play sound when a button is pressed
 addEventListener('click', (event) => {
-  if (event.target !instanceof HTMLButtonElement) {
+  if (!(event.target instanceof HTMLButtonElement)) {
     return
   }
   const audio = new Audio('/assets/music/click-btn.mp3')