diff --git a/src/System.Linq/src/System/Linq/AppendPrepend.cs b/src/System.Linq/src/System/Linq/AppendPrepend.cs
index 7bcd9132e50c..ec12deb43ec5 100644
--- a/src/System.Linq/src/System/Linq/AppendPrepend.cs
+++ b/src/System.Linq/src/System/Linq/AppendPrepend.cs
@@ -154,11 +154,11 @@ public override AppendPrependIterator<TSource> Append(TSource item)
             {
                 if (_appending)
                 {
-                    return new AppendPrependN<TSource>(_source, null, new SingleLinkedNode<TSource>(_item).Add(item), 2, 0);
+                    return new AppendPrependN<TSource>(_source, null, new SingleLinkedNode<TSource>(_item).Add(item), prependCount: 0, appendCount: 2);
                 }
                 else
                 {
-                    return new AppendPrependN<TSource>(_source, new SingleLinkedNode<TSource>(_item), new SingleLinkedNode<TSource>(item), 1, 1);
+                    return new AppendPrependN<TSource>(_source, new SingleLinkedNode<TSource>(_item), new SingleLinkedNode<TSource>(item), prependCount: 1, appendCount: 1);
                 }
             }
 
@@ -166,11 +166,11 @@ public override AppendPrependIterator<TSource> Prepend(TSource item)
             {
                 if (_appending)
                 {
-                    return new AppendPrependN<TSource>(_source, new SingleLinkedNode<TSource>(item), new SingleLinkedNode<TSource>(_item), 1, 1);
+                    return new AppendPrependN<TSource>(_source, new SingleLinkedNode<TSource>(item), new SingleLinkedNode<TSource>(_item), prependCount: 1, appendCount: 1);
                 }
                 else
                 {
-                    return new AppendPrependN<TSource>(_source, new SingleLinkedNode<TSource>(_item).Add(item), null, 2, 0);
+                    return new AppendPrependN<TSource>(_source, new SingleLinkedNode<TSource>(_item).Add(item), null, prependCount: 2, appendCount: 0);
                 }
             }