diff --git a/src/vstest.console/Friends.cs b/src/vstest.console/Friends.cs
index b6267b9aee..e04f4a6450 100644
--- a/src/vstest.console/Friends.cs
+++ b/src/vstest.console/Friends.cs
@@ -5,6 +5,8 @@
 
 #region Product Assemblies
 
+[assembly: InternalsVisibleTo("Microsoft.VisualStudio.TestWindow.Host, PublicKey=002400000480000094000000060200000024000052534131000400000100010007d1fa57c4aed9f0a32e84aa0faefd0de9e8fd6aec8f87fb03766c834c99921eb23be79ad9d5dcc1dd9ad236132102900b723cf980957fc4e177108fc607774f29e8320e92ea05ece4e821c0a5efe8f1645c4c0c93c1ab99285d622caa652c1dfad63d745d6f2de5f17e5eaf0fc4963d261c8a12436518206dc093344d5ad293")]
+
 #endregion
 
 #region Test Assemblies