diff --git a/public/js/app.js b/public/js/app.js
index c625edc..66a5055 100644
--- a/public/js/app.js
+++ b/public/js/app.js
@@ -435,8 +435,12 @@ function findReadButton(elementId) {
   if (!card) return null;
   var buttons = card.querySelectorAll('button');
   for (var i = 0; i < buttons.length; i++) {
-    var oc = buttons[i].getAttribute('onclick') || '';
-    if (oc.indexOf('speakText') !== -1 && oc.indexOf(elementId) !== -1) return buttons[i];
+    var btn = buttons[i];
+    // data-action="speak" buttons (current approach)
+    if (btn.getAttribute('data-action') === 'speak' && btn.getAttribute('data-target') === elementId) return btn;
+    // legacy onclick fallback
+    var oc = btn.getAttribute('onclick') || '';
+    if (oc.indexOf('speakText') !== -1 && oc.indexOf(elementId) !== -1) return btn;
   }
   return null;
 }