diff --git a/VECTO/VECTO.vbproj b/VECTO/VECTO.vbproj
index 0882913402ef443cb1ef5bd2b0d9be800b56cd3c..abddd8eca87c83cea8d383bf174a77f48b22ce79 100644
--- a/VECTO/VECTO.vbproj
+++ b/VECTO/VECTO.vbproj
@@ -131,6 +131,7 @@
     <Reference Include="System" />
     <Reference Include="System.Data" />
     <Reference Include="System.Deployment" />
+    <Reference Include="System.Design" />
     <Reference Include="System.Drawing" />
     <Reference Include="System.Management" />
     <Reference Include="System.Runtime.Remoting" />
diff --git a/VectoCore/VectoCore/Properties/AssemblyInfo.cs b/VectoCore/VectoCore/Properties/AssemblyInfo.cs
index 9f31bbc7c809d3b2d0ab7f713de8e0dd48fec002..26acbf31628823236bf0dc257eb059a500dcb353 100644
--- a/VectoCore/VectoCore/Properties/AssemblyInfo.cs
+++ b/VectoCore/VectoCore/Properties/AssemblyInfo.cs
@@ -43,5 +43,6 @@ using System.Runtime.InteropServices;
 [assembly: ComVisible(false)]
 [assembly: Guid("b843f4c2-660b-4a3e-a336-c1f9c20aa993")]
 [assembly: System.Runtime.CompilerServices.InternalsVisibleTo("VectoAPI")]
+[assembly: System.Runtime.CompilerServices.InternalsVisibleTo("VECTO")]
 [assembly: System.Runtime.CompilerServices.InternalsVisibleTo("VectoCoreTest")]
 [assembly: System.Runtime.CompilerServices.InternalsVisibleTo("VectoAPITest")]
\ No newline at end of file