diff --git a/src/Microsoft.AspNetCore.Blazor/RenderTree/ArrayRange.cs b/src/Microsoft.AspNetCore.Blazor/RenderTree/ArrayRange.cs
index 04d7ba4920..d426a42dbb 100644
--- a/src/Microsoft.AspNetCore.Blazor/RenderTree/ArrayRange.cs
+++ b/src/Microsoft.AspNetCore.Blazor/RenderTree/ArrayRange.cs
@@ -16,12 +16,12 @@ namespace Microsoft.AspNetCore.Blazor.RenderTree
         /// <summary>
         /// Gets the underlying array instance.
         /// </summary>
-        public T[] Array { get; }
+        public readonly T[] Array;
 
         /// <summary>
         /// Gets the number of items in the array that are considered to be in use.
         /// </summary>
-        public int Count { get; }
+        public readonly int Count;
 
         /// <summary>
         /// Constructs an instance of <see cref="ArrayRange{T}"/>.
diff --git a/src/Microsoft.AspNetCore.Blazor/RenderTree/RenderTreeDiff.cs b/src/Microsoft.AspNetCore.Blazor/RenderTree/RenderTreeDiff.cs
index d8ff75ec59..568b7029dd 100644
--- a/src/Microsoft.AspNetCore.Blazor/RenderTree/RenderTreeDiff.cs
+++ b/src/Microsoft.AspNetCore.Blazor/RenderTree/RenderTreeDiff.cs
@@ -11,19 +11,19 @@ namespace Microsoft.AspNetCore.Blazor.RenderTree
         /// <summary>
         /// Gets the ID of the component.
         /// </summary>
-        public int ComponentId { get; }
+        public readonly int ComponentId;
 
         /// <summary>
         /// Gets the changes to the render tree since a previous state.
         /// </summary>
-        public ArrayRange<RenderTreeEdit> Edits { get; }
+        public readonly ArrayRange<RenderTreeEdit> Edits;
 
         /// <summary>
         /// Gets render frames that may be referenced by entries in <see cref="Edits"/>.
         /// For example, edit entries of type <see cref="RenderTreeEditType.PrependFrame"/>
         /// will point to an entry in this array to specify the subtree to be prepended.
         /// </summary>
-        public ArrayRange<RenderTreeFrame> ReferenceFrames { get; }
+        public readonly ArrayRange<RenderTreeFrame> ReferenceFrames;
 
         internal RenderTreeDiff(
             int componentId,