diff --git a/src/Caliburn.Micro/ConductorWithCollectionAllActive.cs b/src/Caliburn.Micro/ConductorWithCollectionAllActive.cs
index c9f0f88f..851ce4a3 100644
--- a/src/Caliburn.Micro/ConductorWithCollectionAllActive.cs
+++ b/src/Caliburn.Micro/ConductorWithCollectionAllActive.cs
@@ -10,7 +10,7 @@ public partial class Conductor<T> {
         /// </summary>
         public partial class Collection {
             /// <summary>
-            /// An implementation of <see cref="IConductor"/> that holds on to many items wich are all activated.
+            /// An implementation of <see cref="IConductor"/> that holds on to many items which are all activated.
             /// </summary>
             public class AllActive : ConductorBase<T> {
                 private readonly BindableCollection<T> items = new BindableCollection<T>();