diff --git a/src/Caliburn.Micro.Core/BindableCollection.cs b/src/Caliburn.Micro.Core/BindableCollection.cs
index 0a43719f..1ed39658 100644
--- a/src/Caliburn.Micro.Core/BindableCollection.cs
+++ b/src/Caliburn.Micro.Core/BindableCollection.cs
@@ -3,7 +3,7 @@
 using System.Collections.ObjectModel;
 using System.Collections.Specialized;
 using System.ComponentModel;
-
+using System.Linq;
 namespace Caliburn.Micro
 {
     /// <summary>
@@ -250,9 +250,8 @@ void RemoveRange()
             {
                 var previousNotificationSetting = IsNotifying;
                 IsNotifying = false;
-                foreach (var item in items)
+                foreach (var index in items.Select(item => IndexOf(item)))
                 {
-                    var index = IndexOf(item);
                     if (index >= 0)
                     {
                         RemoveItemBase(index);