diff --git a/librespot/audio/decoders.py b/librespot/audio/decoders.py
index 7910f20..2982227 100644
--- a/librespot/audio/decoders.py
+++ b/librespot/audio/decoders.py
@@ -51,7 +51,7 @@ class VorbisOnlyAudioQuality(AudioQualityPicker):
     @staticmethod
     def get_vorbis_file(files: typing.List[Metadata.AudioFile]):
         for file in files:
-            if hasattr(file, "format") and SuperAudioFormat.get(
+            if file.HasField("format") and SuperAudioFormat.get(
                     file.format) == SuperAudioFormat.VORBIS:
                 return file
         return None