diff --git a/plugin/contents/ui/dancer.html b/plugin/contents/ui/dancer.html
index 11bd527..90756d9 100644
--- a/plugin/contents/ui/dancer.html
+++ b/plugin/contents/ui/dancer.html
@@ -973,11 +973,9 @@ const beatWrap  = document.querySelector('.beat-wrap');
 const horizonEl = document.querySelector('.horizon');
 
 function triggerBeat() {
-  [beatWrap, horizonEl].forEach(el => {
-    el.classList.remove('beat');
-    void el.offsetWidth;
-    el.classList.add('beat');
-  });
+  horizonEl.classList.remove('beat');
+  void horizonEl.offsetWidth;
+  horizonEl.classList.add('beat');
 }
 
 function detectBeat(vals) {