diff --git a/build/dependencies.props b/build/dependencies.props
index 6bad2ab449..b625e8781a 100644
--- a/build/dependencies.props
+++ b/build/dependencies.props
@@ -21,9 +21,9 @@
     <MicrosoftAspNetCoreHttpAbstractionsPackageVersion>2.1.0-preview2-30355</MicrosoftAspNetCoreHttpAbstractionsPackageVersion>
     <MicrosoftAspNetCoreHttpPackageVersion>2.1.0-preview2-30355</MicrosoftAspNetCoreHttpPackageVersion>
     <MicrosoftAspNetCoreHttpsPolicyPackageVersion>2.1.0-preview2-30355</MicrosoftAspNetCoreHttpsPolicyPackageVersion>
-    <MicrosoftAspNetCoreMvcPackageVersion>2.1.0-a-preview2-application-part-18617</MicrosoftAspNetCoreMvcPackageVersion>
+    <MicrosoftAspNetCoreMvcPackageVersion>2.1.0-a-preview2-app-part-18627</MicrosoftAspNetCoreMvcPackageVersion>
     <MicrosoftAspNetCoreMvcRazorViewCompilationPackageVersion>2.1.0-preview2-30355</MicrosoftAspNetCoreMvcRazorViewCompilationPackageVersion>
-    <MicrosoftAspNetCoreMvcTestingPackageVersion>2.1.0-a-preview2-application-part-18617</MicrosoftAspNetCoreMvcTestingPackageVersion>
+    <MicrosoftAspNetCoreMvcTestingPackageVersion>2.1.0-a-preview2-app-part-18627</MicrosoftAspNetCoreMvcTestingPackageVersion>
     <MicrosoftAspNetCoreRazorDesignPackageVersion>2.1.0-preview2-30355</MicrosoftAspNetCoreRazorDesignPackageVersion>
     <MicrosoftAspNetCoreRewritePackageVersion>2.1.0-preview2-30355</MicrosoftAspNetCoreRewritePackageVersion>
     <MicrosoftAspNetCoreServerIISIntegrationPackageVersion>2.1.0-preview2-30355</MicrosoftAspNetCoreServerIISIntegrationPackageVersion>
diff --git a/src/UI/IdentityBuilderUIExtensions.cs b/src/UI/IdentityBuilderUIExtensions.cs
index fd65649772..33193dd8d6 100644
--- a/src/UI/IdentityBuilderUIExtensions.cs
+++ b/src/UI/IdentityBuilderUIExtensions.cs
@@ -1,6 +1,7 @@
 // Copyright (c) .NET Foundation. All rights reserved.
 // Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
 
+using System.Linq;
 using Microsoft.AspNetCore.Identity.UI;
 using Microsoft.AspNetCore.Identity.UI.Services;
 using Microsoft.AspNetCore.Mvc.ApplicationParts;
@@ -54,10 +55,11 @@ namespace Microsoft.AspNetCore.Identity
                 {
                     var thisAssembly = typeof(IdentityBuilderUIExtensions).Assembly;
                     var relatedAssemblies = RelatedAssemblyAttribute.GetRelatedAssemblies(thisAssembly, throwOnError: true);
+                    var relatedParts = relatedAssemblies.SelectMany(CompiledRazorAssemblyApplicationPartFactory.GetDefaultApplicationParts);
 
-                    foreach (var assembly in relatedAssemblies)
+                    foreach (var part in relatedParts)
                     {
-                        partManager.ApplicationParts.Add(new CompiledRazorAssemblyPart(assembly));
+                        partManager.ApplicationParts.Add(part);
                     }
                 });
         }
diff --git a/src/UI/Microsoft.AspNetCore.Identity.UI.csproj b/src/UI/Microsoft.AspNetCore.Identity.UI.csproj
index 7e75bee44d..e81d9c1a8d 100644
--- a/src/UI/Microsoft.AspNetCore.Identity.UI.csproj
+++ b/src/UI/Microsoft.AspNetCore.Identity.UI.csproj
@@ -8,7 +8,7 @@
     <PackageTags>aspnetcore;identity;membership;razorpages</PackageTags>
     <EnableApiCheck>false</EnableApiCheck>
     <GenerateEmbeddedFilesManifest>true</GenerateEmbeddedFilesManifest>
-    <EnableDefaultCompiledViewAssemblyLoadBehavior>false</EnableDefaultCompiledViewAssemblyLoadBehavior>
+    <ProvideApplicationPartFactoryAttributeTypeName>Microsoft.AspNetCore.Mvc.ApplicationParts.NullApplicationPartFactory, Microsoft.AspNetCore.Mvc.Core</ProvideApplicationPartFactoryAttributeTypeName>
   </PropertyGroup>
 
   <ItemGroup>