diff --git a/framework/src/Volo.Abp.AspNetCore.Mvc/Volo/Abp/AspNetCore/Mvc/Conventions/ConventionalControllerSetting.cs b/framework/src/Volo.Abp.AspNetCore.Mvc/Volo/Abp/AspNetCore/Mvc/Conventions/ConventionalControllerSetting.cs
index d1b0eef6ab..6b06c2854b 100644
--- a/framework/src/Volo.Abp.AspNetCore.Mvc/Volo/Abp/AspNetCore/Mvc/Conventions/ConventionalControllerSetting.cs
+++ b/framework/src/Volo.Abp.AspNetCore.Mvc/Volo/Abp/AspNetCore/Mvc/Conventions/ConventionalControllerSetting.cs
@@ -4,6 +4,7 @@ using Microsoft.AspNetCore.Mvc.ApplicationModels;
 using Microsoft.AspNetCore.Mvc.Versioning;
 using System;
 using System.Collections.Generic;
+using System.Collections.Immutable;
 using System.Linq;
 using System.Reflection;
 using Volo.Abp.Reflection;
@@ -16,7 +17,7 @@ public class ConventionalControllerSetting
     public Assembly Assembly { get; }
 
     [NotNull]
-    public HashSet<Type> ControllerTypes { get; } //TODO: Internal?
+    internal HashSet<Type> ControllerTypes { get; }
 
     /// <summary>
     /// Set true to use the old style URL path style.
@@ -85,6 +86,11 @@ public class ConventionalControllerSetting
         }
     }
 
+    public IReadOnlyList<Type> GetControllerTypes()
+    {
+        return ControllerTypes.ToImmutableList();
+    }
+
     private static bool IsRemoteService(Type type)
     {
         if (!type.IsPublic || type.IsAbstract || type.IsGenericType)