diff --git a/BlazorSortableList.Lib/SortableList.razor.cs b/BlazorSortableList.Lib/SortableList.razor.cs
index 313991f..66388ab 100644
--- a/BlazorSortableList.Lib/SortableList.razor.cs
+++ b/BlazorSortableList.Lib/SortableList.razor.cs
@@ -127,8 +127,8 @@ public void OnUpdateJS(int oldIndex, int newIndex, string fromId)
                 {
                     if (DefaultSort)
                     {
-                        throw new ArgumentException(
-                            "It must be defined as either {nameof(OnUpdate)} or {nameof(DefaultSort)}, but not both together.");
+                        throw new InvalidOperationException(
+                            $"It must be defined as either {nameof(OnUpdate)} or {nameof(DefaultSort)}, but not both together.");
                     }
 
                     // invoke the OnUpdate event passing in the oldIndex and the newIndex