diff --git a/MediaBrowser.Server.Implementations/IO/LibraryMonitor.cs b/MediaBrowser.Server.Implementations/IO/LibraryMonitor.cs
index dea0a978bf..ea9e58ee47 100644
--- a/MediaBrowser.Server.Implementations/IO/LibraryMonitor.cs
+++ b/MediaBrowser.Server.Implementations/IO/LibraryMonitor.cs
@@ -52,7 +52,8 @@ namespace MediaBrowser.Server.Implementations.IO
             ".db",
 
             // bts sync files
-            ".bts"
+            ".bts",
+            ".sync"
         };
 
         /// <summary>