diff --git a/library/ajax/ffprobe_info.php b/library/ajax/ffprobe_info.php
index 77a2f1940..eaf72e43c 100644
--- a/library/ajax/ffprobe_info.php
+++ b/library/ajax/ffprobe_info.php
@@ -35,7 +35,7 @@ if (!$info_hash = (string)$this->request['info_hash'] or !ctype_xdigit($info_has
     $this->ajax_die("Invalid info_hash: $info_hash");
 }
 
-$isAudio = !empty($this->request['is_audio']);
+$isAudio = isset($this->request['is_audio']) && $this->request['is_audio'];
 
 // Get ffprobe info from TorrServer
 $ffpInfo = (new \TorrentPier\TorrServerAPI())->getFfpInfo($info_hash, $file_index, $attach_id);
diff --git a/playback_m3u.php b/playback_m3u.php
index 7eb8701c9..9eb3e56f5 100644
--- a/playback_m3u.php
+++ b/playback_m3u.php
@@ -90,7 +90,7 @@ foreach ($m3uData as $entry) {
         'FILE_INDEX' => $urlParams['index'],
         'ROW_CLASS' => $rowClass,
         'IS_VALID' => in_array($getExtension, array_merge($validFormats['audio'], $validFormats['video'])),
-        'IS_AUDIO' => in_array($getExtension, $validFormats['audio']),
+        'IS_AUDIO' => (int)in_array($getExtension, $validFormats['audio']),
         'STREAM_LINK' => $streamLink,
         'M3U_DL_LINK' => DL_URL . $row['attach_id'] . '&m3u=1',
         'TITLE' => $title,
diff --git a/styles/templates/default/playback_m3u.tpl b/styles/templates/default/playback_m3u.tpl
index a8328871d..0cfe92875 100644
--- a/styles/templates/default/playback_m3u.tpl
+++ b/styles/templates/default/playback_m3u.tpl
@@ -39,7 +39,7 @@
         <td width="40%"><b>{m3ulist.TITLE}</b>
             <div id="ffprobe_{m3ulist.FILE_INDEX}">
                 <hr/>
-                <input onclick="ajax.ffprobe_info({m3ulist.FILE_INDEX}, '{m3ulist.IS_AUDIO}');" type="button" value="{L_SHOW_MORE_INFORMATION_FILE}">
+                <input onclick="ajax.ffprobe_info({m3ulist.FILE_INDEX}, {m3ulist.IS_AUDIO});" type="button" value="{L_SHOW_MORE_INFORMATION_FILE}">
             </div>
         </td>
         <td>