diff --git a/src/DotRecast.Core/Collections/RcSortedQueue.cs b/src/DotRecast.Core/Collections/RcSortedQueue.cs
index 0c06aad..f5c817e 100644
--- a/src/DotRecast.Core/Collections/RcSortedQueue.cs
+++ b/src/DotRecast.Core/Collections/RcSortedQueue.cs
@@ -25,14 +25,29 @@ namespace DotRecast.Core.Collections
 {
     public class RcSortedQueue<T>
     {
+        private sealed class ReverseComparer : IComparer<T>
+        {
+            private readonly Comparison<T> _comparison;
+
+            public ReverseComparer(Comparison<T> comparison)
+            {
+                _comparison = comparison;
+            }
+            
+            public int Compare(T x, T y)
+            {
+                return _comparison(x, y) * -1;
+            }
+        }
+        
         private bool _dirty;
         private readonly List<T> _items;
-        private readonly Comparer<T> _comparer;
+        private readonly IComparer<T> _comparer;
 
         public RcSortedQueue(Comparison<T> comp)
         {
             _items = new List<T>();
-            _comparer = Comparer<T>.Create((x, y) => comp.Invoke(x, y) * -1);
+            _comparer = new ReverseComparer(comp);
         }
 
         public int Count()