diff --git a/src/ImageSharp/Memory/Allocators/MemoryAllocatorSettings.cs b/src/ImageSharp/Memory/Allocators/MemoryAllocatorSettings.cs
index 274e1739cb..01ab46c2a1 100644
--- a/src/ImageSharp/Memory/Allocators/MemoryAllocatorSettings.cs
+++ b/src/ImageSharp/Memory/Allocators/MemoryAllocatorSettings.cs
@@ -6,7 +6,7 @@ namespace SixLabors.ImageSharp.Memory
     /// <summary>
     /// Defines options for creating the default <see cref="MemoryAllocator"/>.
     /// </summary>
-    public class MemoryAllocatorSettings
+    public struct MemoryAllocatorSettings
     {
         private int? maximumPoolSizeMegabytes;