diff --git a/src/libraries/Microsoft.Extensions.Http/ref/Microsoft.Extensions.Http.cs b/src/libraries/Microsoft.Extensions.Http/ref/Microsoft.Extensions.Http.cs
index 9071751734f946..51891e8ebcf754 100644
--- a/src/libraries/Microsoft.Extensions.Http/ref/Microsoft.Extensions.Http.cs
+++ b/src/libraries/Microsoft.Extensions.Http/ref/Microsoft.Extensions.Http.cs
@@ -57,7 +57,7 @@ public static partial class HttpClientFactoryServiceCollectionExtensions
         public static Microsoft.Extensions.DependencyInjection.IHttpClientBuilder AddHttpClient<TClient, [System.Diagnostics.CodeAnalysis.DynamicallyAccessedMembersAttribute(System.Diagnostics.CodeAnalysis.DynamicallyAccessedMemberTypes.PublicConstructors)] TImplementation>(this Microsoft.Extensions.DependencyInjection.IServiceCollection services, string name, System.Action<System.Net.Http.HttpClient> configureClient) where TClient : class where TImplementation : class, TClient { throw null; }
         public static Microsoft.Extensions.DependencyInjection.IHttpClientBuilder AddHttpClient<TClient, TImplementation>(this Microsoft.Extensions.DependencyInjection.IServiceCollection services, string name, System.Func<System.Net.Http.HttpClient, System.IServiceProvider, TImplementation> factory) where TClient : class where TImplementation : class, TClient { throw null; }
         public static Microsoft.Extensions.DependencyInjection.IHttpClientBuilder AddHttpClient<TClient, TImplementation>(this Microsoft.Extensions.DependencyInjection.IServiceCollection services, string name, System.Func<System.Net.Http.HttpClient, TImplementation> factory) where TClient : class where TImplementation : class, TClient { throw null; }
-        public static Microsoft.Extensions.DependencyInjection.IServiceCollection ConfigureHttpClientDefaults(Microsoft.Extensions.DependencyInjection.IServiceCollection services, System.Action<Microsoft.Extensions.DependencyInjection.IHttpClientBuilder> configure) { throw null; }
+        public static Microsoft.Extensions.DependencyInjection.IServiceCollection ConfigureHttpClientDefaults(this Microsoft.Extensions.DependencyInjection.IServiceCollection services, System.Action<Microsoft.Extensions.DependencyInjection.IHttpClientBuilder> configure) { throw null; }
     }
     public partial interface IHttpClientBuilder
     {