Remove some allocations (#7246)

1 files changed, 1 insertions, 1 deletions

diff --git a/MediaBrowser.Controller/Library/ILibraryManager.cs b/MediaBrowser.Controller/Library/ILibraryManager.cs
index 8db528330..2b0193771 100644
--- a/MediaBrowser.Controller/Library/ILibraryManager.cs
+++ b/MediaBrowser.Controller/Library/ILibraryManager.cs
@@ -434,7 +434,7 @@ namespace MediaBrowser.Controller.Library
         /// <param name="fileSystemChildren">The file system children.</param>
         /// <param name="directoryService">An instance of <see cref="IDirectoryService"/>.</param>
         /// <returns>IEnumerable&lt;BaseItem&gt;.</returns>
-        IEnumerable<BaseItem> FindExtras(BaseItem owner, List<FileSystemMetadata> fileSystemChildren, IDirectoryService directoryService);
+        IEnumerable<BaseItem> FindExtras(BaseItem owner, IReadOnlyList<FileSystemMetadata> fileSystemChildren, IDirectoryService directoryService);
 
         /// <summary>
         /// Gets the collection folders.