diff --git a/src/LanguageServer/Protocol/Microsoft.CodeAnalysis.LanguageServer.Protocol.csproj b/src/LanguageServer/Protocol/Microsoft.CodeAnalysis.LanguageServer.Protocol.csproj
index ebb576317480d..128285a30a354 100644
--- a/src/LanguageServer/Protocol/Microsoft.CodeAnalysis.LanguageServer.Protocol.csproj
+++ b/src/LanguageServer/Protocol/Microsoft.CodeAnalysis.LanguageServer.Protocol.csproj
@@ -50,11 +50,13 @@
     <RestrictedInternalsVisibleTo Include="Microsoft.AspNetCore.Razor.Microbenchmarks" Namespace="Roslyn.LanguageServer.Protocol" Partner="Razor" Key="$(RazorKey)" />
     <RestrictedInternalsVisibleTo Include="Microsoft.AspNetCore.Razor.LanguageServer.Test" Namespace="Roslyn.LanguageServer.Protocol" Partner="Razor" Key="$(RazorKey)" />
     <RestrictedInternalsVisibleTo Include="Microsoft.AspNetCore.Razor.LanguageServer.Test" Namespace="Roslyn.Text.Adornments" Partner="Razor" Key="$(RazorKey)" />
+    <RestrictedInternalsVisibleTo Include="Microsoft.AspNetCore.Razor.Test.Common.Cohosting" Namespace="Roslyn.LanguageServer.Protocol" Partner="Razor" Key="$(RazorKey)" />
     <RestrictedInternalsVisibleTo Include="Microsoft.AspNetCore.Razor.Test.Common.Tooling" Namespace="Roslyn.LanguageServer.Protocol" Partner="Razor" Key="$(RazorKey)" />
     <RestrictedInternalsVisibleTo Include="Microsoft.VisualStudio.Razor.IntegrationTests" Namespace="Roslyn.Text.Adornments" Partner="Razor" Key="$(RazorKey)" />
     <RestrictedInternalsVisibleTo Include="Microsoft.CodeAnalysis.Razor.Workspaces.Test" Namespace="Roslyn.LanguageServer.Protocol" Partner="Razor" Key="$(RazorKey)" />
     <RestrictedInternalsVisibleTo Include="Microsoft.CodeAnalysis.Remote.Razor.Test" Namespace="Roslyn.LanguageServer.Protocol" Partner="Razor" Key="$(RazorKey)" />
     <RestrictedInternalsVisibleTo Include="Microsoft.VisualStudio.LanguageServices.Razor.Test" Namespace="Roslyn.LanguageServer.Protocol" Partner="Razor" Key="$(RazorKey)" />
+    <RestrictedInternalsVisibleTo Include="Microsoft.VisualStudioCode.RazorExtension.Test" Namespace="Roslyn.LanguageServer.Protocol" Partner="Razor" Key="$(RazorKey)" />
     <!-- Full IVT is through ExternalAccess for functionality -->
     <InternalsVisibleTo Include="Microsoft.CodeAnalysis.ExternalAccess.Xaml" />
     <!-- Restricted IVT is direct for protocol types only -->