diff --git a/docfx.json b/docfx.json
index cceca40203e..269725313ef 100644
--- a/docfx.json
+++ b/docfx.json
@@ -88,6 +88,7 @@
         "api/Microsoft.Activities**.yml": "microsoft.activities",
         "api/Microsoft.Build**.yml": "microsoft.build",
         "api/Microsoft.CSharp**.yml": "microsoft.csharp",
+        "api/Microsoft.Extensions**.yml": "microsoft.extensions",
         "api/Microsoft.JScript**.yml": "microsoft.jscript",
         "api/Microsoft.SqlServer**.yml": "microsoft.sqlserver",
         "api/Microsoft.VisualBasic**.yml": "microsoft.visualbasic",
@@ -100,6 +101,7 @@
         "api/System.Buffers**.yml": "system.buffers",
         "api/System.CodeDom**.yml": "system.codedom",
         "api/System.Collections**.yml": "system.collections",
+        "api/System.CommandLine**.yml": "system.commandline",
         "api/System.ComponentModel**.yml": "system.componentmodel",
         "api/System.Composition**.yml": "system.composition",
         "api/System.Configuration**.yml": "system.configuration",
@@ -111,6 +113,7 @@
         "api/System.Drawing**.yml": "system.drawing",
         "api/System.Dynamic**.yml": "system.dynamic",
         "api/System.EnterpriseServices**.yml": "system.enterpriseservices",
+        "api/System.Formats**.yml": "system.formats",
         "api/System.Globalization**.yml": "system.globalization",
         "api/System.IdentityModel**.yml": "system.identitymodel",
         "api/System.IO**.yml": "system.io",
@@ -139,6 +142,7 @@
         "api/System.Xaml**.yml": "system.xaml",
         "api/System.Xml**.yml": "system.xml",
         "api/UIAutomationClientsideProviders**.yml": "uiautomationclientsideproviders",
+        "api/Windows.UI**.yml": "windows.ui",
         "api/XamlGeneratedNamespace**.yml": "xamlgeneratednamespace"
       },
       "langs": {