diff --git a/MediaBrowser.Controller/Providers/Music/LastfmHelper.cs b/MediaBrowser.Controller/Providers/Music/LastfmHelper.cs
index 8e335ba859..163d2ed533 100644
--- a/MediaBrowser.Controller/Providers/Music/LastfmHelper.cs
+++ b/MediaBrowser.Controller/Providers/Music/LastfmHelper.cs
@@ -8,8 +8,8 @@ namespace MediaBrowser.Controller.Providers.Music
 {
     public static class LastfmHelper
     {
-        public static string LocalArtistMetaFileName = "mbartist.js";
-        public static string LocalAlbumMetaFileName = "mbalbum.js";
+        public static string LocalArtistMetaFileName = "lastfmartist.json";
+        public static string LocalAlbumMetaFileName = "lastfmalbum.json";
 
         public static void ProcessArtistData(BaseItem artist, LastfmArtist data)
         {