1 files changed, 4 insertions, 3 deletions
diff --git a/Jellyfin.Api/Controllers/YearsController.cs b/Jellyfin.Api/Controllers/YearsController.cs
index e4aa0ea42..907724e04 100644
--- a/Jellyfin.Api/Controllers/YearsController.cs
+++ b/Jellyfin.Api/Controllers/YearsController.cs
@@ -1,5 +1,6 @@
 using System;
 using System.Collections.Generic;
+using System.Collections.Immutable;
 using System.ComponentModel.DataAnnotations;
 using System.Linq;
 using Jellyfin.Api.Extensions;
@@ -105,18 +106,18 @@ public class YearsController : BaseJellyfinApiController
 
         bool Filter(BaseItem i) => FilterItem(i, excludeItemTypes, includeItemTypes, mediaTypes);
 
-        IList<BaseItem> items;
+        IReadOnlyList<BaseItem> items;
         if (parentItem.IsFolder)
         {
             var folder = (Folder)parentItem;
 
             if (userId.IsNullOrEmpty())
             {
-                items = recursive ? folder.GetRecursiveChildren(Filter) : folder.Children.Where(Filter).ToList();
+                items = recursive ? folder.GetRecursiveChildren(Filter) : folder.Children.Where(Filter).ToImmutableArray();
             }
             else
             {
-                items = recursive ? folder.GetRecursiveChildren(user, query).ToList() : folder.GetChildren(user, true).Where(Filter).ToList();
+                items = recursive ? folder.GetRecursiveChildren(user, query) : folder.GetChildren(user, true).Where(Filter).ToImmutableArray();
             }
         }
         else