diff --git a/X10D/src/ListExtensions.cs b/X10D/src/ListExtensions/ListExtensions.cs
similarity index 98%
rename from X10D/src/ListExtensions.cs
rename to X10D/src/ListExtensions/ListExtensions.cs
index 48389c3..4d58ac5 100644
--- a/X10D/src/ListExtensions.cs
+++ b/X10D/src/ListExtensions/ListExtensions.cs
@@ -1,7 +1,7 @@
 using System;
 using System.Collections.Generic;
 
-namespace X10D
+namespace X10D.ListExtensions
 {
     /// <summary>
     ///     Extension methods for <see cref="IList{T}" />.