diff --git a/MediaBrowser.Providers/MediaInfo/AudioFileProber.cs b/MediaBrowser.Providers/MediaInfo/AudioFileProber.cs
index e929fd081..f200e15d0 100644
--- a/MediaBrowser.Providers/MediaInfo/AudioFileProber.cs
+++ b/MediaBrowser.Providers/MediaInfo/AudioFileProber.cs
@@ -356,27 +356,27 @@ namespace MediaBrowser.Providers.MediaInfo
                         : audio.Genres;
                 }
 
-                if (options.ReplaceAllMetadata || !audio.TryGetProviderId("MusicBrainzArtist", out _))
+                if (options.ReplaceAllMetadata || !audio.TryGetProviderId(MetadataProvider.MusicBrainzArtist, out _))
                 {
                     audio.SetProviderId(MetadataProvider.MusicBrainzArtist, tags.MusicBrainzArtistId);
                 }
 
-                if (options.ReplaceAllMetadata || !audio.TryGetProviderId("MusicBrainzAlbumArtist", out _))
+                if (options.ReplaceAllMetadata || !audio.TryGetProviderId(MetadataProvider.MusicBrainzAlbumArtist, out _))
                 {
                     audio.SetProviderId(MetadataProvider.MusicBrainzAlbumArtist, tags.MusicBrainzReleaseArtistId);
                 }
 
-                if (options.ReplaceAllMetadata || !audio.TryGetProviderId("MusicBrainzAlbum", out _))
+                if (options.ReplaceAllMetadata || !audio.TryGetProviderId(MetadataProvider.MusicBrainzAlbum, out _))
                 {
                     audio.SetProviderId(MetadataProvider.MusicBrainzAlbum, tags.MusicBrainzReleaseId);
                 }
 
-                if (options.ReplaceAllMetadata || !audio.TryGetProviderId("MusicBrainzReleaseGroup", out _))
+                if (options.ReplaceAllMetadata || !audio.TryGetProviderId(MetadataProvider.MusicBrainzReleaseGroup, out _))
                 {
                     audio.SetProviderId(MetadataProvider.MusicBrainzReleaseGroup, tags.MusicBrainzReleaseGroupId);
                 }
 
-                if (options.ReplaceAllMetadata || !audio.TryGetProviderId("MusicBrainzTrack", out _))
+                if (options.ReplaceAllMetadata || !audio.TryGetProviderId(MetadataProvider.MusicBrainzTrack, out _))
                 {
                     audio.SetProviderId(MetadataProvider.MusicBrainzTrack, tags.MusicBrainzTrackId);
                 }