diff --git a/src/Microsoft.AspNetCore.Razor.Evolution/DefaultInstrumentationPass.cs b/src/Microsoft.AspNetCore.Razor.Evolution/DefaultInstrumentationPass.cs
index 1681fc2105..fe6e253041 100644
--- a/src/Microsoft.AspNetCore.Razor.Evolution/DefaultInstrumentationPass.cs
+++ b/src/Microsoft.AspNetCore.Razor.Evolution/DefaultInstrumentationPass.cs
@@ -7,7 +7,7 @@ using Microsoft.AspNetCore.Razor.Evolution.Intermediate;
 
 namespace Microsoft.AspNetCore.Razor.Evolution
 {
-    internal class DefaultInstrumentationPass : RazorIRPassBase
+    public class DefaultInstrumentationPass : RazorIRPassBase
     {
         public override int Order => RazorIRPass.DefaultLoweringOrder;
 
diff --git a/src/Microsoft.AspNetCore.Razor.Evolution/RazorIRPassBase.cs b/src/Microsoft.AspNetCore.Razor.Evolution/RazorIRPassBase.cs
index 6213773490..561e4af78f 100644
--- a/src/Microsoft.AspNetCore.Razor.Evolution/RazorIRPassBase.cs
+++ b/src/Microsoft.AspNetCore.Razor.Evolution/RazorIRPassBase.cs
@@ -6,7 +6,7 @@ using Microsoft.AspNetCore.Razor.Evolution.Intermediate;
 
 namespace Microsoft.AspNetCore.Razor.Evolution
 {
-    internal abstract class RazorIRPassBase : IRazorIRPass
+    public abstract class RazorIRPassBase : IRazorIRPass
     {
         private RazorEngine _engine;