diff --git a/lib/util/mime_utils.js b/lib/util/mime_utils.js
index ae802ba1b7..1471142f84 100644
--- a/lib/util/mime_utils.js
+++ b/lib/util/mime_utils.js
@@ -52,7 +52,7 @@ shaka.util.MimeUtils = class {
         return shaka.media.Transmuxer.convertTsCodecs(
             contentType, fullMimeType);
       }
-    } else if (contentType == ContentType.AUDIO) {
+    } else if (mimeType != 'video/mp2t' && contentType == ContentType.AUDIO) {
       // video/mp2t is the correct mime type for TS audio, so only replace the
       // word "video" with "audio" for non-TS audio content.
       return fullMimeType.replace('video', 'audio');