diff --git a/Emby.Server.Implementations/Library/LibraryManager.cs b/Emby.Server.Implementations/Library/LibraryManager.cs
index 841f6321aa..55566ed517 100644
--- a/Emby.Server.Implementations/Library/LibraryManager.cs
+++ b/Emby.Server.Implementations/Library/LibraryManager.cs
@@ -143,7 +143,7 @@ namespace Emby.Server.Implementations.Library
         public bool IsScanRunning { get; private set; }
 
         private IServerApplicationHost _appHost;
-        private IMediaEncoder _mediaEncoder;
+        private readonly IMediaEncoder _mediaEncoder;
 
         /// <summary>
         /// The _library items cache