diff --git a/apps/readest-app/src/app/reader/components/tts/TTSPanel.tsx b/apps/readest-app/src/app/reader/components/tts/TTSPanel.tsx
index aa6bc35a..c91ac066 100644
--- a/apps/readest-app/src/app/reader/components/tts/TTSPanel.tsx
+++ b/apps/readest-app/src/app/reader/components/tts/TTSPanel.tsx
@@ -232,7 +232,10 @@ const TTSPanel = ({
           <MdFastForward size={iconSize32} />
         </button>
         <div className='dropdown dropdown-top'>
-          <button className='flex flex-col items-center justify-center rounded-full p-1'>
+          <button
+            tabIndex={0}
+            className='flex flex-col items-center justify-center rounded-full p-1'
+          >
             <MdAlarm size={iconSize32} />
             {timeoutCountdown && (
               <span