diff --git a/Recyclable.Collections/RecyclableLongList.cs b/Recyclable.Collections/RecyclableLongList.cs
index 242974e..e1ac32c 100644
--- a/Recyclable.Collections/RecyclableLongList.cs
+++ b/Recyclable.Collections/RecyclableLongList.cs
@@ -5,6 +5,7 @@ using System.Runtime.CompilerServices;
 using Recyclable.Collections.Pools;
 
 [assembly: InternalsVisibleTo("Recyclable.Collections.Benchmarks")]
+[assembly: InternalsVisibleTo("Recyclable.CollectionsTests")]
 
 namespace Recyclable.Collections
 {