diff --git a/src/DynamicData/List/ListEx.cs b/src/DynamicData/List/ListEx.cs
index c6882ce2b..b24bdabc8 100644
--- a/src/DynamicData/List/ListEx.cs
+++ b/src/DynamicData/List/ListEx.cs
@@ -77,7 +77,7 @@ public static void AddOrInsertRange<T>(this IList<T> source, IEnumerable<T> item
     }
 
     /// <summary>
-    /// Adds the range to the source ist.
+    /// Adds the range to the source list.
     /// </summary>
     /// <typeparam name="T">The type of the item.</typeparam>
     /// <param name="source">The source.</param>